Seven kids with superior martial arts skills stumble into excitement and adventure in this action comedy. One day, one of the kids accidentally stumbles upon the scene of a murder, and shortly before the victim expires, he gives the boy a valuable diamond, with instructions to give it to a woman with a rose. As the kid and his pals try to figure out what to do, they discover a group of gangsters are also on the trail of the jewel, and their talents are put to the test.