The orca whale, or what else is called this huge sea animal, a whale-killer, was separated from his family. People who discovered the unfortunate animal, moved it to an amusement park and gave the name of Willy, expecting to be able to earn a lot of money on performances with his participation. Meanwhile, a boy named Jesse runs away from home, so soon he has to engage in begging and stealing to feed himself somehow. After a while Jesse manages to find kind and sympathetic parents, so he needs to erase not very good inscriptions, which he painted in the park with the help of a spray. That's when Willy and Jesse meet. They immediately became real friends.