The BEST Episodes of Invasion

Every episode ever - ranked by fan votes!

Last Updated: Sep 21, 2021

Network: ABC (US)

In the aftermath of a hurricane, a Florida Park Ranger and his family deal with strange occurrences, including luminescent creatures in the water and people that somehow seem to have changed after surviving the night of the disaster out in the open.

Watch Now

#1 - Re-Evolution

Season 1 - Episode 18 - Aired Apr 19, 2006

Russell and Dave investigate what's happening on Szura's island in the Keys. Tensions rise at school between the students who were changed by the hurricane and those who weren't. Underlay tries to find out the extent of the military's involvement in post-hurricane changes.

star 8.11
356 votes
Directors: Eric Laneuville
Writers: Charles Grant Craig, Julie Siege

#2 - Power

Season 1 - Episode 12 - Aired Jan 18, 2006

After a visit to Mariel, Russel finds that Tom has taken the children on a vacation without asking permission. Someone is hiding outside of Mariel's house and is discovered by Russel. Larkin is suspicious of Russell's intentions towards Mariel.

star 8.02
334 votes
Writers: Becky Hartman Edwards, Reed Steiner
Round Up

#3 - Round Up

Season 1 - Episode 21 - Aired May 10, 2006

As the hurricane starts to hit the town of Homestead, Russell and Tom try to stop Szura. The National Guard rounds up Larkin, Mariel and the children. Mariel and Larkin have suspicions about their rescuers. Dave is questioned as to Underlay's location.

star 7.81
418 votes
The Cradle

#4 - The Cradle

Season 1 - Episode 8 - Aired Nov 16, 2005

Sheriff Underlay tracks down a mother who has abandoned a baby at Russell's ranger station. The mother denies that the child is hers. Her mother-in-law swears that the baby is her grandchild and that Christina has been acting strange ever since the hurricane hit. Meanwhile, Mariel who begins questioning why she has been losing touch with her kids makes a shocking discovery in the water.

star 7.78
371 votes
Writers: Julie Siege
Us or Them

#5 - Us or Them

Season 1 - Episode 11 - Aired Jan 11, 2006

Russell confronts Mariel about the changes in her personality. Tom tries to help Sirk cope with his new circumstances. Jesse meets an intriguing girl at the hotel while on vacation with Larkin and Rose.

star 7.70
337 votes
Directors: J. Miller Tobin
Writers: J. Miller Tobin, Shaun Cassidy
The Hunt

#6 - The Hunt

Season 1 - Episode 6 - Aired Oct 26, 2005

A family of Cuban refugees tries to make their way to Miami. After they notice the lights in the water, their escape from Cuba is cut short. The next morning Russell encounters one of the Cuban survivors. Meanwhile, Mariel attends a support group and Larkin realizes that someone is following her.

star 7.68
374 votes
Writers: Becky Hartman Edwards, Shaun Cassidy
The Fittest

#7 - The Fittest

Season 1 - Episode 16 - Aired Mar 8, 2006

Russell and Tom team together to try to catch a pregnant Christina and Derek, who are armed, dangerous and on the run. While searching Russell and Tom find a group of migrant workers. Mariel confides in Jesse and Rose about what happened to her. An unconscious Kira is in the hospital after her encounter with the orange being. Larkin searches for more answers about Paxton and his real reason for being in the area during the hurricane.

star 7.68
359 votes
The Son Also Rises

#8 - The Son Also Rises

Season 1 - Episode 19 - Aired Apr 26, 2006

After his investigation of the hybrids, Russell finds that he may be out of a job. Sensing another storm, the hybrids prepare. Rose's teacher is teaching a subject that has Russell bothered. Jesse and a school friend find a way to get even with the hybrids.

star 7.67
361 votes
Writers: Michael Alaimo (II), Shaun Cassidy

#9 - Redemption

Season 1 - Episode 13 - Aired Jan 25, 2006

Russel knowing that Larkin and their unborn child's life is on the line he must stop Larkin from reporting what she knows. Sheriff Underlay is shot and drifts between the past and present.

star 7.67
390 votes
Directors: Bill Eagles
Writers: Michael Alaimo
Fish Story

#10 - Fish Story

Season 1 - Episode 7 - Aired Nov 9, 2005

Larkin barely survives a car crash and the fate of her unborn baby is unknown. Larkin gets picked up by a stranger in a pick-up but she soon becomes suspicious of his motives. Meanwhile, Mariel tries to reconnect with Jesse.

star 7.64
310 votes
Directors: Rod Holcomb
Writers: Juan Carlos Coto, Michael Alaimo

#11 - Pilot

Season 1 - Episode 1 - Aired Sep 21, 2005

A hurricane is quickly approaching a small town in Florida leaving the residents little time to prepare. When the hurricane finally hits, many of the residents' lives are in peril. Rose, one of the town's smallest residents notices some mysterious lights in the heart of the hurricane. Meanwhile, after the storm, Dave discovers some mysterious skeletal remains.

star 7.63
451 votes
Directors: Thomas Schlamme
Writers: Shaun Cassidy
The Dredge

#12 - The Dredge

Season 1 - Episode 9 - Aired Nov 23, 2005

Russell is suspected of committing a double murder. Larkin discovers Russell's criminal history and wonders about who he really is. Mariel insists that she saw a body in the water and demands that the bay be dredged.

star 7.62
369 votes
Directors: Michael Nankin
Writers: Jill Blotevogel, Reed Steiner
Origin of Species

#13 - Origin of Species

Season 1 - Episode 10 - Aired Nov 30, 2005

After a couple reads his blogs, they abduct Dave to find out what he knows about the hurricane's aftermath. Underlay and Sirk discover the identity of the woman in the bay and Sirk gets a glimpse of the orange lights.

star 7.62
364 votes
Directors: Steve Shill
Writers: Juan Carlos Coto, Shaun Cassidy
Lights Out

#14 - Lights Out

Season 1 - Episode 2 - Aired Sep 28, 2005

After discovering an Air Force officer named Paxton in a wet suit and barely alive at the ranger station, Russell begins to question what befell the man when he notices his wounds are identical to Dave's. But Russell soon finds out that he's not the only one interested in Paxton when Sheriff Underlay and Larkin both begin to question the man's mysterious circumstances. Meanwhile Mariel finds something unexplainable protruding from Paxton's wounds, Russell's curiosity about the strange skeleton grows, and Underlay continues to push for a town quarantine.

star 7.61
424 votes
Writers: Shaun Cassidy
Run and Gun

#15 - Run and Gun

Season 1 - Episode 20 - Aired May 3, 2006

Russell and Underlay find that they have to work together as another storm is quickly approaching. They need to get their families out of Homestead and to try to find where Szura has stashed away the hybrids.

star 7.60
385 votes
Writers: Juan Carlos Coto, Michael Foley
Alpha Male

#16 - Alpha Male

Season 1 - Episode 4 - Aired Oct 12, 2005

The citizens start to question why the town is still under a quarantine that has cut off medical and building supplies. The citizens find themselves on the verge of a major medical pandemic. Russell and Sheriff Underlay must track down the source of this quickly spreading virus.

star 7.60
346 votes
Writers: Juan Carlos Coto
The Nest

#17 - The Nest

Season 1 - Episode 15 - Aired Feb 15, 2006

Kira is curious and frustrated as she tries to find the truth out about her father, Mariel and the other residents of Homestead. Will Kira find danger in her search? Meanwhile, Russell tests Mariel's blood and they are shocked at the results.

star 7.58
363 votes
Writers: Julie Siege, Shaun Cassidy
All God's Creatures

#18 - All God's Creatures

Season 1 - Episode 14 - Aired Feb 8, 2006

Russell, Larkin and Dave find out the identity of one of the creatures. Meanwhile, Underlay tries to find out who shot him and Kira begins to wonder what really happened to her dad.

star 7.52
390 votes
Directors: Harry Winer
Writers: Michael Foley
The Key

#19 - The Key

Season 1 - Episode 17 - Aired Mar 15, 2006

Mariel begrudgingly performs an ultrasound when Christina demands to know what is growing so quickly inside of her. After the school reopens, Jesse is bothered by the way; some of the fellow students are acting. Russell and Dave investigate what Healy knew about the hybrids.

star 7.51
360 votes
Directors: Bryan Spicer
Writers: Michael Alaimo, Michael Foley
The Last Wave Goodbye

#20 - The Last Wave Goodbye

Season 1 - Episode 22 - Aired May 17, 2006

In the middle of the hurricane chaos, Underlay and Russell mount a rescue of the humans who are being round up by the hybrids. Meanwhile, two humans who suspect that Underlay is the cause of the chaos take Larkin, Dave, Jesse and Rose as hostages.

star 7.46
303 votes
Writers: Charles Grant Craig, Shaun Cassidy

#21 - Watershed

Season 1 - Episode 3 - Aired Oct 5, 2005

Russell and Mariel suffer a tragedy but it is made worse when Mariel tries to help. Kira feels guilty over an accident. During the hurricane and after there has been a mysterious military presence and Larkin tries to learn more about it. Meanwhile, Dave investigates a lost piece of jewelry.

star 7.42
353 votes
Directors: Michael Dinner
Writers: Becky Hartman Edwards, Shaun Cassidy
Unnatural Selection

#22 - Unnatural Selection

Season 1 - Episode 5 - Aired Oct 19, 2005

The family of Russell's friend and fellow Park Ranger, Carl, is struck by tragedy. Russell suspects Sheriff Underlay may be hiding something when he starts looking into the tragedy. Larkin calls upon an old flame to help her investigation into the military. Meanwhile, Mariel and Jesse have a big fight and Rose wants a tree house.

star 7.23
408 votes
Directors: Thomas Schlamme
Writers: Michael Berns, Shaun Cassidy