Unikitty and the gang are having a great time at the public pool, until they try to get Puppycorn to swim in the deep end with them. Puppycorn is terrified of the deep end. Now Unikitty and the gang must get him over his fear, so he can have maximum pool fun. Meanwhile, Master Frown and Brock are hatching a plan to ruin everyone's fun, by pulling the pool's plug.
