Melanie embarks on her most dangerous mission yet, while Layton reckons with his personal choices.

As the Big Alice crew are granted shore leave on Snowpiercer, Layton and Wilford have differing opinions on the future.

Layton and Miss Audrey make a risky play for Big Alice, but Wilford has his own plans.

An exchange is made between the two trains, but a far greater revelation might be just over the horizon.

In the revolution’s aftermath, Layton and Melanie realize the greatest threat to their survival is right over their shoulder.

On a divided Snowpiercer, Melanie intensifies her search for Layton while Layton is weaponizing her secret. Third Class faces a reckoning when he presents them with a choice.

Tensions between Third Class and First Class are boiling as Melanie stages the trial of the Snowpiercer killer. Third Class threatens a work stoppage, demanding representation on the jury, and…

Layton descends into the black market with Till, searching for both the killer and a valuable commodity for his revolution. Melanie stages a prize fight to distract the passengers from…

Nick leans on Monroe and Rosalee as he worries that he may lose everything as he continues to battle Black Claw. Renard ramps up his campaign as election time nears….

Jerry, George and Elaine return from their trip to India that they don’t want to talk about. Sue Ellen calls the wedding off and Nina doesn’t want George or Jerry….

Al wants to move to Atlanta where he got a job offer. Jeanie however isn’t keen on moving. Carol talks to Carter’s grandmother about the clinic.

After a young Muslim Marine is murdered near his Mosque, Ducky refuses to perform autopsy due to his religious beliefs, so the NCIS team tries to talk to the father…

Ralphie introduces Jackie Jr. to the muscle end of his business, which doesn’t go over well with Tony. Janice gets in over her head with the Russians when she won’t…

On their mission to rescue Jack, Kate, Sayid, and Locke stumble upon a mysterious structure surrounded by farm animals and meet its strange inhabitant. Back at the camp, in order…