Following last night's action-packed "Legends of Tomorrow" episode, the Waverider crew's mission has entered its next phase. The team now has Vandal Savage, the immortal villain they've been trying to stop all season long, in their custody -- but Savage isn't going down without a (very manipulative) fight.

Pics from next week's "River of Time" episode not only show Savage interacting with the "Legends" team from inside his cell, but also the surprise return of Nyssa al Ghul (Katrina Law) -- Sara Lance's (Caity Lotz) former lover. You can check out the pictures as well as synopsis for the episode below.

CAPTURED -- After numerous attempts in many different time periods, the team has successfully captured Vandal Savage (guest star Casper Crump). However, Savage tells Kendra (Ciara Renee) that he can reunite her with Carter (Falk Hentschel) so she struggles with whether she should kill him. Rip (Arthur Darvill) decides they will deliver Savage to the Time Masters which doesn't sit well with Snart (Wentworth Miller) and Rory (Dominic Purcell). The duo decides it may be time to jump ship and return to their old life. Meanwhile, Savage taunts Ray (Brandon Routh) about his place in Kendra's life. Alice Troughton directed the episode written by Cortney Norris & Anderson Mackenzie (#114). Original airdate 5/5/2016.

"Legends of Tomorrow" airs on Thursdays at 8 PM ET on the CW.