With Frost facing an unjust punishment for her past crimes, Caitlin goes to great lengths to save her sister. Meanwhile, Barry's efforts to protect Speed Force Nora lead to a shocking discovery.
Starts: Grant Gustin, Candice Patton, Danielle Panabaker, Carlos Valdes, Danielle Nicolet, Kayla Compton, Brandon McKnight, Tom Cavanagh, Jesse L. Martin