Revenge of the Rogues

"Revenge of the Rogues" is the tenth episode of the first season of The Flash. It aired on January 20, 2015.

Synopsis
Leonard Snart AKA Captain Cold returns to Central City with a new hotheaded partner in town – Mick Rory AKA Heat Wave. 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 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, Caitlin and Cisco to help him double his training efforts so he's ready for the Reverse-Flash when the man in yellow returns to Central City. Iris deals with the aftermath of Barry’s confession, and Cisco makes the CCPD a new shield.