When you watch The Flash Season 1 Episode 16 online, you'll see the return of Leonard Snart and Mick Rory. That's Captain Cold and Heat Wave to you. They have Lisa Snart along for the ride and she needs a weapon. Of course, Barry is also still fighting with the day he's reliving, and things are much different than they were the first time around. While Harrison shares his insights on messing with the time continuum, Barry doesn't always listen to the advice that is offered by others. What do you think he will do? Well you can find out that and more when you watch The Flash online via TV Fanatic!