The BEST Episodes of The Secret World of Alex Mack

Every episode ever - ranked by fan votes!

Last Updated: Nov 26, 2019

Network: Nickelodeon

Alex Mack is an ordinary teenage girl, living with her parents, George and Barbara, and older sister, Annie, in the corporate town of Paradise Valley. While walking home after her first day of junior high school, she is nearly hit by a truck from a chemical plant, and during the incident, she is drenched with a top-secret chemical called GC-161. She soon discovers that it gave her strange powers. These include telekinesis, the ability to zap bolts of electricity from her fingers, and the capacity to morph into a mobile puddle of metallic liquid. However, her powers prove to be unpredictable (such as when her skin starts glowing brightly while she's nervous). She confides only in Annie and her best friend, Ray, choosing to keep her powers a secret from everyone else, including her parents, for fear of what the chemical plant CEO, Danielle Atron, will do to her if she finds out.

24 Hours

#1 - 24 Hours

Season 4 - Episode 18

After coming to school like every day in her life, Alex notices that her parents, friends and teachers have started to act strangely. First she gets into detention with no reason and after escaping, everybody starts haunting her. But, what is really going on?

star 9.00
2 votes
The Doctor

#2 - The Doctor

Season 4 - Episode 11

Alex has a doctor's appointment and fears her altered body chemistry will be discovered. Robyn grieves over the loss of her hamster.

star 8.50
2 votes
Directors: Allison Liddi
Writers: Matt Dearborn
Paradise Regained (2)

#3 - Paradise Regained (2)

Season 4 - Episode 20

The final episode. Ray, Louis, and Hunter try to free Alex and her parents from the Plant which is lined with bombs thanks to Danielle Atron. Meanwhile Dave works with Gino and the FDA to stop the chemical plant from releasing GC-161.

star 8.33
3 votes
The Secret

#4 - The Secret

Season 2 - Episode 4

The morning before Halloween, Alex and Ray come across Paradise Valley's haunted house while delivering newspapers. The next day, Louis convinces Alex and Ray to check out the old house. When Alex takes a closer look, she's sucked in by a mysterious light and comes face-to-face with the woman of the house.

star 7.80
5 votes
Directors: Paul Tassie
Writers: Thomas W. Lynch
Rat Trap

#5 - Rat Trap

Season 2 - Episode 8

Alex makes the track team, but will she compete in the big meet once she realizes the plant is spying on her?

star 7.67
3 votes
Directors: Linda Shayne
Writers: Carolyn Quinn
The Neighbor

#6 - The Neighbor

Season 3 - Episode 5

Nicole tries in vain to petition against the plant for environmental violations. Alex is more concerned about her mysterious next-door neighbor who she sees having suspicious contact with the plant.

star 7.67
3 votes
Double Bogey

#7 - Double Bogey

Season 2 - Episode 2

Alex shows Dad the meaning of ""good golf"" when they enter the plant's father-daughter golf tournament.

star 7.60
5 votes
Directors: Paul Tassie
Writers: Matt Dearborn
Hoop War

#8 - Hoop War

Season 1 - Episode 2

Alex and Raymond are continually harassed by upperclassmen Jessica and Ellen. One afternoon Jessica trips Alex in the school cafeteria as Alex carries a tray full of food. A food fight ensues and Vice Principal Heller assigns Alex, Raymond, Jessica and Ellen to clean up the cafeteria every afternoon. Both sets of friends blame each other for the trouble, and they agree to take up Raymond's challenge of two-on-two on the basketball court. The stakes: the losers have to admit responsibility to Heller and clean up the cafeteria by themselves.

star 7.53
19 votes
Writers: Ken Lipman
Paradise Lost (1)

#9 - Paradise Lost (1)

Season 4 - Episode 19

After four years of keeping her powers hidden, Alex's secret world is falling apart. As the Plant prepares for the release of GC-161 to the public, her dad loses his job, and Louis discovers her secret powers, and is captured by the Plant.

star 7.50
2 votes
Writers: Ken Lipman
False Alarms

#10 - False Alarms

Season 1 - Episode 7

Alex, Raymond, and Nicole are facing their first junior high school midterm in history class. Libby, the most popular girl in school, has her own ideas about surviving the midterm and studying isn't one of them. Libby decides to pull the fire alarm right before the exam.

star 7.43
7 votes
Directors: Sean McNamara
Writers: Neena Beber
The Solo

#11 - The Solo

Season 1 - Episode 12

Alex uses her powers to save Ray after he freezes at a school music recital.

star 7.43
7 votes
School Dance

#12 - School Dance

Season 1 - Episode 5

The big dance is just around the corner and Alex still hasn't been asked by the only person she cares to go with. Everybody knows she dreams of going with Scott, but he's not the one hounding her for a date. Jerry, an obnoxious, insensitive and persistent ninth-grader is relentless in his pursuit of her. He won't take no for an answer, but Alex continues to put him off.

star 7.36
11 votes
Directors: Allison Liddi
Writers: Ken Lipman

#13 - Nerve

Season 2 - Episode 20

Alex inspires Robyn to face the dreaded ""Rooney Runabout"" and pass P.E.

star 7.33
3 votes
Directors: Paul Hoen
Writers: Peter Egan

#14 - Working

Season 3 - Episode 3

Alex and Robyn get jobs at the new video store in Paradise Valley, where Vince and Dave have installed the plant's latest GC-161 detector.

star 7.33
3 votes
Directors: Paul Hoen
Writers: Mindy Schneider
Cold Day in Paradise Valley

#15 - Cold Day in Paradise Valley

Season 1 - Episode 10

A reporter from the Planet newspaper comes to the Macks' house to do a story; Alex's cold makes her powers go haywire.

star 7.25
8 votes
Writers: Christine Ecklund, Keith Hoffman
Alex and Mom

#16 - Alex and Mom

Season 1 - Episode 9

In anger, Alex jeopardizes her mom's job. Later, she tries to make it up to her.

star 7.18
11 votes
The Journal

#17 - The Journal

Season 2 - Episode 1

The plant closes in when Alex's journal, detailing her powers, ends up in the wrong hands.

star 7.14
7 votes
Annie Bails

#18 - Annie Bails

Season 1 - Episode 11

Annie considers going away to school. Meanwhile, Alex's powers are going haywire and she must convince Annie not to go.

star 7.13
8 votes
Directors: Ron Oliver
Writers: Christine Ecklund, Keith Hoffman
The Accident

#19 - The Accident

Season 1 - Episode 1

On her way home from school Alex Mack is practically hit by a truck. The truck is carrying a top-secret chemical and spills it on Alex. Alex learns later that she has magical powers and shares this secret with her sister, Annie, and best friend, Raymond.

star 7.11
46 votes
Directors: Peter Lauer
Writers: Ken Lipman, Thomas W. Lynch
Science Fair

#20 - Science Fair

Season 1 - Episode 6

Annie's science project has been chosen as a finalist for the big science fair to be held at the Paradise Valley Chemical Plant. The whole Mack family is looking forward to spending Saturday at the science fair rooting Annie on, except Alex. Not only is she sick of witnessing Annie's triumphs, but the chemical plant is the worst place for her to be. It's crawling with plant spies who are constantly on the look out for ""the kid.""

star 7.10
10 votes
Directors: Sean McNamara
Writers: Ken Lipman, Thomas W. Lynch
New Kid in Town

#21 - New Kid in Town

Season 2 - Episode 3

Alex, Raymond, Nicole and Robyn notice a new neighbor moving in. It turns out to be Louis Driscoll, a cool-looking kid with a wisecracking attitude. The more Raymond likes him, the more Alex doesn't.

star 7.00
6 votes
Directors: Allison Liddi
Writers: Anna MacGregor

#22 - Pressure

Season 2 - Episode 6

Alex steals a test to help Nicole, who is cracking under the pressure of the exam. At the plant, George discovers that GC-161 has the capability to alter human genetic structure.

star 7.00
4 votes
Directors: Paul Hoen
Writers: Ken Lipman
The Gift

#23 - The Gift

Season 2 - Episode 10

Alex and George discover that gifts and decorations aren't as important as the Christmas spirit, while Dave's gift to Vince is a chimp that runs amok in the plant.

star 7.00
2 votes
Directors: Paul Tassie
Writers: Ken Lipman, Thomas W. Lynch
On the Rocks

#24 - On the Rocks

Season 2 - Episode 13

While trying to impress Bryce, Annie goes mountain climbing and is left dangling.

star 7.00
3 votes
Directors: Jeff Blyth
Writers: Mindy Schneider
The Party

#25 - The Party

Season 2 - Episode 16

George and Barbara run into Danielle when they go to a resort to relax. When Kelly finds out that Alex's parents are out of town, she befriends her and arranges a party that destroys the house. Alex uses her powers to get rid of the guests and clean up. When Kelly heads for the door, Alex confronts her for taking advantage of her trust.

star 7.00
2 votes
Directors: Jeff Blyth
Writers: Danielle Gantner