SEASON FINALE: As The Legends are about to take off for their next destination, a massive time quake rocks the ship. In order to try and fix what has happened, they are forced to break the one cardinal rule of time travel. But if they are able to destroy The Spear, they will face the ultimate consequence. Also Starring Victor Garber, Brandon Routh, Arthur Darvill, Caity Lotz, Dominic Purcell, Franz Drameh, Nick Zano and Maisie Richardson Sellers. Rob Seidenglanz Directed The Episode Written by Phil Klemmer & Marc Guggenheim.