Vincent Keller is about to relive some painful memories.

On next Thursday's Beauty and the Beast, this veteran will allow JT to sedate him in order to prove determine the cause of his blackouts - which causes Vincent to think back to Afghanistan and the person who gave him his first DNA-altering injection.

Elsewhere, Cat and Tess will investigate the murder of a young pop star, while Evan wonders if Cat is protecting a certain vigilante.

Watch the official CW preview for "Trapped" now.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.