Take a look @ footage, plus images from the upcoming "Arrow" and "The Flash" cross-over episode "Legends Of Today", written by Aaron Helbing, Todd Helbing and directed by Ralph Hemecker, airing December 1, 2015 on The CW:
"...'Vandal Savage' (Casper Crump) arrives in 'Central City' and sets his sights on 'Kendra Saunders' (Ciara Renée).
"After Vandal attacks Kendra and 'Cisco' (Carlos Valdes), they turn to 'Barry' (Grant Gustin) for help.
"Realizing how dangerous Vandal is, Barry takes Kendra to 'Star City' and asks 'Oliver' (Stephen Amell) and his 'Arrow' team to hide her...
"...until he can figure out how to stop Vandal.
"However, things quickly go from bad to worse when 'Hawkman' (Falk Hentschel) shows up and flies off with Kendra.
"Meanwhile, 'Harrison' (Tom Cavanagh) develops a serum to make Barry run faster and asks 'Jay' (Teddy Sears) to test it out..."
Click the images to enlarge and Sneak Peek "The Flash: Legends Of Today"...