A science experiment on earth pulls a surly talking duck named Howard out of his dimension and in to ours. When the experiment is attempted again, what it pulls down isn't so friendly. Howard must dodge scientists, contend with alien invaders, and above all, return home!
Lea Thompson actually did the singing for all of the songs of her character's band, as did the other actresses in the group. On the 2009 DVD, Thompson states that even during filming the studio had not made a final decision as to whether to keep Thompson's singing voice or dub her.