Due South/Recap/S2/E02 Vault

Due to an exaggerated insurance claim, Ray Vecchio has been declared dead (They're burying him Thursday). While Ray is arguing with his bank manager about getting access to his account, Fraser recognises a bank-robber (One of the robbers from Free Willie, who really doesn't remember Benton with fondness); They take refuge in the Vault. First Fraser disables the emergency release handle, in case either of them weakens; then, after Ray refuses to talk to him on account of that, he smashes open the sprinkler head. It's all perfectly planned out; The vault will be nearly full when the robbers blow the door, releasing a tidal wave that will incapacitate them. Then Ray's sister Francesca starts trying to help them...

Tropes

 * Drowning Pit