Matt Donovan is heading over to 'The Originals' for what ought to be an exciting story. Matt Donovan is heading over to The Originals for what ought to be an exciting story.

The Waverider might be able to do a lot more than just travel in time. Supergirl's iteration of Earth has the potential to get very crowded. The Flash/Supergirl crossover was a ratings boon for the CBS series, and DC's TV universe is not averse to bringing the girl from Krypton into its yearly crossover bonanza.

Harry has some important intel that he isn't sharing with his STAR Labs pals. Find out what he's hiding.

Something is brewing on 'The 100', and viewers should expect a new faction to come to the fore.