Trying to relieve a bad case of "Game Show Host Block," Ruff has fallen asleep and left the water in the bathtub running! The flooded doghouse is filled with floating junk, giving him the perfect idea for today's challenge: Khalil, Anna, and Julia, must design a boat out of materials they find at the dump. Their boat has to float; it has to be stable and steer-able; and it has to be propelled by something other than oars.