CSI: NY (2004)

S04E21 Hostage

During a botched bank heist, a man holds hostages, prompting Mac to volunteer himself in return for one of them. His only requirement is to demonstrate that the bank manager, discovered dead in the vault, was not murdered by the robber. Meanwhile, the rest of the team outside the bank races to analyze the evidence Mac uncovers and prevent the SWAT team from escalating the situation further.