Barry and his friends have to figure out a way to defeat an untouchable opponent when an executed prisoner comes back with the power to transform himself into lethal gas. Meanwhile, Joe goes to see Henry for the first time in years, and Eddie is frustrated that Iris won't tell her father that they're dating.

Starring:

Grant Gustin, Candice Patton, Carlos Valdes, Danielle Panabaker, Tom Cavanagh, Jessica Parker Kennedy, Danielle Nicolet, Jesse L. Martin, Hartley Sawyer

Genre:

Action, Adventure, Drama