New "Flash" Promo Teases Reverse Flash's Return in "Potential Energy"

The CW has released a new promo for "The Flash's" midseason premiere -- teasing the show's tenth Season 2 episode, "Potential Energy."

With the Reverse Flash back to cause Barry trouble, and the growing threat from Earth-2, the new "Flash" promo features narration from Jay, warning Barry to "...not get distracted by anything you see along the way."

The series stars Grant Gustin as Barry Allen, Candice Patton as Iris West, Danielle Panabaker as Caitlin Snow/Killer Frost, Teddy Sears as Jay Garrick, Tom Cavanagh as Harry Wells, Matt Letscher as the Reverse Flash, Shantel VanSanten as Patty Spivot, Jesse L. Martin as Joe and Keiynan Lonsdale as Wally West.

WATCH: Killer Frost, Earth-2 Barry Debut in New Promo for "The Flash"

"The Flash" returns with the second half of Season 2 on Tuesday, January 19, at 8/7C on The CW.

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