Clarke wrestles with a decision. Bellamy learns that something isn't what it seems. Murphy plots to betray his former Chancellor.

Rip decides to weaken Vandal Savage by going after his financial assets. Rip and Sara infiltrate Savage’s bank, but are discovered by his men. Meanwhile, Snart and Rory talk Jax…

Mike and Louis must identify an anonymous tipster in order to diffuse a damning piece of evidence. Gibbs isn't just after Mike, she's set her sights on Jessica and Harvey…

The team faces off against a formidable villain nicknamed The Calculator. Meanwhile, Nyssa makes her move and Roy Harper returns to Star City.

Agent Carter and the SSR learn there's more than just a pretty face behind Hollywood star Whitney Frost, Peggy's most dangerous foe yet.

After getting a clue about who may have wiped Clary's memories, the crew hunts down the High Warlock of Brooklyn, Magnus Bane. With all of the warlocks in hiding from…