For more details on the episode's production and cast, you can check the "Rogue Time" entry on IMDb . "The Flash" Rogue Time (TV Episode 2015) - IMDb
: Leonard Snart ( Captain Cold ) and Mick Rory ( Heat Wave ) return to Central City, joined by Snart's sister, Lisa Snart (Golden Glider). [S1E16] Rogue Time
: In this timeline, the Rogues kidnap Cisco and his brother, Dante. To save Dante’s life, Cisco is forced to rebuild the Rogues' elemental weapons and, more critically, reveal Barry Allen's secret identity to Snart. For more details on the episode's production and
: Eobard Thawne (posing as Harrison Wells) warns Barry that time is a fickle thing. He explains that "saving" one person often results in the universe finding a "replacement" for that tragedy. This is tragically realized when the reporter Mason Bridge—who was investigating Wells—is murdered instead of Cisco. To save Dante’s life, Cisco is forced to
: The episode concludes with a significant shift in the Flash-Snart dynamic. Barry realizes he cannot simply lock Snart away without risking his secret identity being exposed. He negotiates a "gentleman’s agreement": Snart can continue his heists as long as he doesn't kill anyone.