When Mal'akh sends a disturbing video of Peter, Langdon has no other choice but to reunite with Katherine and team up with Sato for a bold move. Nuñez follows a hunch.
At the Homecoming dance, the "Bayview Four" look for evidence against their main suspect in Simon's murder.
Crafty comics including Morgana Robinson contend with pea, jam, sunglasses and songs.
Giving up isn't an option: Niko hatches a plan and spars with Richard. The chase is on when the crew tries to stand strong, and noises rattle nerves.
As the Achaia close in, the crew moves quickly to create a new weapon and save Earth. The time has come for the heroic to make the ultimate sacrifice.
Eager to go home by any means necessary, Niko and Richard head to a planet with an artifact. Erik and Cas go undercover, and William brokers a deal.
In a flash, Niko and Richard's world takes a terrifying turn as they wake up in a cold, cruel trap. On Earth, the team grapples with memory gaps.
Sheldon encourages Missy to question the Bible; Meemaw is determined to catch George Sr. in a lie; Mary helps Pastor Jeff search for a youth pastor.
When a heat wave hits Seattle, Station 19 becomes a cooling center and chaos ensues with locals who aren't used to the extreme temperatures. Andy deals with regret and finds a friend in Theo.
The sensational Sandi Toksvig invites Aisling Bea, Roisin Conaty, Jessica Fostekew and Alan Davies to try to make sense of the scoring system on the always entertaining, often quite interesting quiz.
Al and Riley take on second jobs as "repo men" to make extra money to send to Al's sister, but Riley's behavior while working becomes concerning.
Shock waves hit a Salvare struggling in the aftermath of an epic act of destruction. Niko questions William's judgment as Erik looks to the Achaia.
Amanda is hellbent on making Viking pay for his actions, Eamon takes part in an Ayahuasca ceremony with his ex-wife and Michael has another ill-fated meeting with his daughter.
The new planet holds promise — and unexpected threats in the brush. The tables turn as Richard reaches out to Iara. The Achaia open up to Erik.
Alone at last, or not? Salvare's team faces a rough ride home — and a cautious reentry. Elsewhere, Erik tests Achaian tech, then asks for a favor.
As Gina and Drew adjust to life after surgery, Drew develops romantic feelings for someone new; Gina gets surprising news about a friend's death.
Venturing into the ring to negotiate with the Achaia, Niko sees the unimaginable. Cas risks everything by sending Iara on a mission. Jana stuns Erik.
Americans love freedom. But what price are they willing to pay for it--and what can be learned from other countries that are fighting to be free?