Martin Riggs and Roger Murtaugh, Sargeants with the Los Angeles Police Department, respond to a call of a bomb at the ICSI building. The building had already been evacuated. Riggs convinces Murtaugh to go in with him, reasoning that the Bomb Squad never arrives on time. Riggs examines the bomb, and decides to cut one of the wires. They are joined (and distracted) by a stray cat. When Riggs finally cuts a wire, the timer accelerates, forcing them to run for their lives. The building explodes and collapses. Shortly afterward, well within the time remaining if Riggs hadn’t have tampered with the bomb, the Bomb Squad arrives. At least they saved the cat.