Soon after arriving in the U.S., Romanian immigrant Franz Libelt dies, leaving his daughter Michelna an orphan. The girl is befriended by newsboy Blackie Moyle, who invites her to share his home, which is a large piano box in a vacant lot. After teaching her to be a "newsie," Michelna cuts her hair, dresses as a boy, and changes her name to Mike. When Blackie is blinded while protecting the girl from a thief, Mike is forced to find a way to support them both. It occurs to her that two clay statuettes they sculpted might be valuable, so she takes them to an art exhibit. Mike's statue, known as the "trouble buster," sells immediately, but she credits Blackie as the sculptor. He then becomes the sensation of the art world and is sent to Paris to have his sight restored. Blackie comes to understand Mike's deception and returns to the U.S. to set things right. When Blackie is finally reunited with Michelna, she asks why he came back, and he replies, "For the love of Mike."