Walter White was exposed for the dangerous, unstable liar that he is on Breaking Bad this week. Skyler is totally on to the man he's become.

How will Walt react to this fact next Sunday? According to AMC, he'll take a "risky gamble," while Sklyer runs into a problem at the car wash and Hank asks for Walt Jr.'s assistance. Get your first look at "Problem Dog" via the following promo.