Mac, Stella and Det. Flack uncover the latest fantasy game sweeping New Yorkers of every class and status -- an assassination game called "water gun wars," where each player receives a pack of photos from an unknown source, and then must track and shoot their targets with a water gun or balloon before another player kills them first.

Meanwhile, when a woman is found dead in her Manhattan apartment, Danny, Sheldon and Det. Maka trace her steps to an exotic cuisine event where the main course includes live centipedes, Brazilian cockroaches, live octopus and fried tarantulas, among other delicacies.