Krys Marshall

Lily's long-lost dad shows up unannounced on Thanksgiving Day. She confides the real reason she stopped speaking to him three years ago but she and Marshall disagree on how they should deal with the dispute. Will Lily take Marshall's advice and forgive her dad?

The BAU team face of their toughest cases yet when a prolific, border-crossing serial killer leads them on a hunt into Canada.

Kevin stresses about the premiere of his play, Randall struggles under the pressure of his work and his ailing father, Rebecca and Jack's Valentine's Day doesn't go as planned, and Toby and Kate decide to get to know each other's biggest secrets.

Kara steps in to help Lena when she is threatened by Morgan. Meanwhile, Alex decides to run medical tests to see if she can help Sam.

When the DEO captures a second Worldkiller, Supergirl and Alex use very different methods of interrogation in an effort to learn how to defeat Reign. J'onn, Winn and Mon-El band together to fix the Legion ship.