A tabloid journalist named Frank Quinlan receives a lead about an unusual story involving an alleged angel living in Iowa. Accompanied by his partner Huey Driscoll and a curious "angel expert" named Dorothy Winters, Frank embarks on a road trip to investigate the claim. When they arrive, they discover a disheveled, chain-smoking man named Michael who insists he is indeed the Archangel Michael. The skeptical crew decides to bring him back to Chicago to prove his authenticity, expecting sensational headlines and greater readership for their paper.

Along their journey back, Michael demonstrates his miraculous abilities and unconventional wisdom, impacting each member of the group in unexpected ways. Despite his rough exterior and unangelic behavior, Michael manages to rekindle lost passions, mend broken spirits, and foster a sense of camaraderie among the group. As they travel together, the bond between the characters deepens, creating a blend of heartfelt moments and humorous encounters. The revelation of Michael's true purpose and nature unfolds gradually, leaving everyone involved changed forever by the end of their journey.