Nick Lang (Michael J. Fox) is a popular movie star who desperately wants to break out of his "nice guy"
screen image. Believing he'll land a role as a tough homicide detective if he can hang out with the real
thing, Lang leaves Hollywood to spend a few weeks on the streets of New York with detective John Moss
(James Woods). A gritty no-nonsense cop on the trail of a ruthless serial killer, the last thing Moss
needs is an annoying sidekick. But his boss - a fan of Nick Lang's movies - insists, and Moss must find ways
to get Lang out of his hair while pursuing the murderer. It's a nonstop action and laughs that lead to a
breathtaking showdown in Times Square as Lang and Moss finally learn to get along...the hard way.