The much awaited promo and synopsis for the upcoming episode, titled 'Legends of Yesterday,' of season 4 of Arrow is finally here.

Oliver's Son Might Affect His Relationship With Felicity?

This episode is made extra special as it is part 2 of the Arrow crossover with Flash, and while the preview clip is full of all kinds of thrilling action and intense anatgonistic exchnages, there is also the odd comic moment, courtesy Barry Allen (Grant Gustin), which makes it fun.

The first epic crossover was featured in season 3 and it seems like with this second installment, the creators of both shows will be taking things up a notch.

Actor Playing DC Comics Villain The Calculator Revealed

Here's the official synopsis for the episode.

"PART TWO OF THE EPIC CROSSOVER WITH "THE FLASH" - Oliver (Stephen Amell) and Barry Allen (guest star Grant Gustin) take Kendra Saunders (guest star Ciara Renée) and Carter Hall (guest star Falk Henstchel) to a remote location to keep them hidden from Vandal Savage (guest star Casper Crump) while they figure out how to defeat him. Malcolm (John Barrowman) arranges a meeting between Vandal, Green Arrow and The Flash that doesn't go as planned. Meanwhile, Felicity (Emily Bett Rickards), Thea (Willa Holland), Diggle (David Ramsey) and Laurel (Katie Cassidy) work with Team Flash to come up with a weapon powerful enough to destroy Vandal Savage."

'Legends of Yesterday' will air on December 2 at 8 p.m. on The CW.

Watch the preview:

Tags: Arrow Flash the cw television