Sirens Sirens

Every time Theresa's partner Billy (Josh Segarra) has opened his mouth on Sirens, he's proven not to be the brightest crayon in the box.

But on Thursday's Sirens (10/9c, USA), Hank (Kevin Daniels) will have to go where no man has dared — inside Billy's head — after Billy is involved in a scary call with an armed drunk.

Most Loathed TV Characters

"What's the worst thing that could happen? Get inside my head," Billy tells Hank in this exclusive sneak peek.

Watch the exclusive video below to see Hank's surprising response:

Sirens airs Thursdays at 10/9c on USA.