The Flash returns with its midseason premiere episode tonight, 20 January at 8pm on the CW.
Episode 10 is titled, Revenge Of The Rogues, where Wentworth Miller and Dominic Purcell will guest star as Captain Cold and Heat Wave.
Click here to watch the episode online.
The official synopsis reads as follows:
Leonard Snart AKA Captain Cold (guest star Wentworth Miller) returns to Central City with a new hotheaded partner in tow – Mick Rory AKA Heat Wave (guest star Dominic Purcell). The duo plan to steal a multi-million dollar painting, but Cold has another agenda while in town – to set a trap for The Flash. Snart and Mick kidnap someone close to The Flash and threaten to kill them unless The Flash shows up for a battle of fire and ice. Barry tells Joe (Jesse L. Martin) he isn't sure he should take on Snart again after the casualties that happened the last time they fought. Meanwhile, Barry asks Dr. Wells (Tom Cavanagh), Caitlin (Danielle Panabaker) and Cisco (Carlos Valdes) to help him double his training efforts so he's ready for the Reverse Flash when he returns to Central City. Iris (Candice Patton) deals with the aftermath of Barry's confession, and Cisco makes the CCPD a new shield. Nick Copus directed the episode written by Geoff Johns & Kai Yu Wu.
Grant Gustin in an interview with Entertainment Weekly had revealed that Barry still trusts his mentor Harrison Wells, and teased a major Reverse Flash twist at the end of season 1.
"Barry is still defending Wells and still trusting of Wells at this point [sic]. There's a big twist that even surprised me. I've seen all the predictions online. No one has predicted the big twist that's coming at the end of this season," Gustin said.
Watch the promo here: