Athena and the 118 race to save lives after a drunk driver causes a deadly pile-up on the freeway. Meanwhile, Maddie goes into labor and Hen and Karen are devastated as they prepare their foster daughter, Nia, to be reunited with her birth mother.Watch Now:Amazon
Nolan’s relationship with his first confidential informant is tested when he discovers her back on the street dealing drugs. Lucy’s fear of dating following her abduction and her intrusion into Jackson’s relationship is beginning to threaten their friendship.Watch Now:Amazon
The 118 responds to debris from a meteor shower crashing into an apartment building and a deadly fire caused by a hazardous waste truck crash inside a tunnel. Meanwhile, Hen struggles with guilt over her ambulance accident, Bobby introduces Eddie to an old friend to help with his anger and Maddie receives an urgent call for help.Watch Now:Amazon
Athena investigates a robbery at a gas station that takes an unexpected turn when the would-be victim turns the tables on her assailant. The 118 race to rescue a novice diver who panics while in a shark cage, and a house sitter terrified of spiders. Eddie reaches his breaking point, Chimney returns to the 118 and Maddie shares some news with Buck, who realizes he has to come clean with Taylor.Watch Now:Amazon
After uncovering a cryptic message from the past, Alex, Isobel, Max, Michael and Maria set out in search of answers at the reservation where Alex's mother grew up. Meanwhile, Cameron encourages Liz to reach out to someone from her past after Auturo gets detained.Watch Now:Amazon
Everyone is less than enthusiastic when Sullivan assigns each member of the crew a specialty skill to learn. During a house call, Ryan is caught off guard when he comes face-to-face with someone from his past; and Sullivan, Andy and Maya handle a structure fire in a derelict building.Watch Now:Amazon
Owen and T.K. risk their lives to save two brothers trapped in a homemade minefield. Meanwhile, Grace receives an emergency call from a conjoined twin whose brother is dying, Tommy interviews new candidates to fill the team's open EMT position and Paul's mother and estranged sister pay him an unexpected visit.Watch Now:Amazon
The 118 race to the rescue when an abandoned oil well erupts and causes a massive sinkhole in downtown LA. Athena investigates a 30-year-old cold case involving a casino robbery. Buck fears his relationship with Taylor might be ending. Hen meets a man from her mother’s past.Watch Now:Amazon
The BAU searches for an unsub in Austin, Texas who is targeting prominent members of the community.
When Sophia asks Matt and Colleen about having children, an animated sequence featuring the whole family as farm animals reveals that they have been struggling to have a baby. Also, Jen and Greg's new neighbors aren't as nice as they initially seem; Heather interferes with Tim's hiring process at the office; and the whole family surprises Joan at her book reading, to her chagrin.Watch Now:Amazon
During a battle with Cicada, Nora is severely injured. Due to Cicada’s dampening powers, Nora’s speed healing isn’t working, leaving Barry and Iris scared for their daughter’s future. Upset about his injured child, The Flash is filled with rage and confronts Cicada in a brutal battle. Meanwhile, Killer Frost keeps interfering with Caitlin’s work on the cure.
Barry’s efforts to prepare Cisco for Crisis are derailed when Cisco schemes to save Barry’s life instead. Meanwhile, Ramsey Rosso uses his deadly new abilities to save his own life, while sacrificing his humanity in the process.
After months of covertly pursuing Dante, Diggle and Lyla finally have a solid lead on the elusive terrorist, so they deploy the ARGUS Ghost Initiative to apprehend him. Meanwhile, Oliver tries to bond with Emiko.
John Diggle arrives in Central City with a weapon to help Barry stop the Godspeed War. Meanwhile, Allegra and Ultraviolet's new bond is put to the ultimate test, while Joe and Kristin Kramer are hunted by a former colleague of hers.
The Flash enlists a host of speedster allies, including Iris and his children from the future, Bart and Nora West-Allen, to end the speedster war and defeat a deadly new adversary.