No Way Out

S8 E12: After learning of Manny's ethnic prejudices originating from the Latino street gang that he used to hang out with, as well as from his mother who also may be prejudice at her son dating a Caucasian girl, an irate April joins Craig on a diving expedition that takes a turn for the worse when they are attacked by a shark and then sucked into a water filter pipe where they find themselves trapped in a power plant's underwater cooling chamber at the mercy of both the propeller blades, and the shark swimming outside.