Tonight's "Flash" episode features a momentous occasion -- the first instance of members of Team Flash traveling to the parallel Earth that's been at the forefront of many of the show's season two stories. In the episode, Barry Allen and Cisco Ramon will travel to Earth-2 with Harrison Wells in an attempt to learn more about the evil Zoom and rescue Wells' daughter Jesse. But there's plenty of other stuff on Earth-2 for Cisco and Barry to freak out about; for instance, their allies Caitlin Snow and Ronnie Raymond are totally evil, as shown in another clip released today, and -- as seen in this new clip -- Earth-2's Henry Hewitt is much more friendly.

"The Flash's" "Welcome to Earth-2" airs tonight on the CW at 8 PM ET.