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.
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"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.