Liu Jing (played by Stephen Chow), a young man from Mainland China who has had magical powers in his right arm since he was a child, encountered a series of misfortunes soon after arriving in Hong Kong. First, his wallet was stolen, and then his luggage was robbed. However, he also met the bohemian Xiaosha (played by Zhong Zhentao). Liu Jing looked for a job everywhere, but was still undecided, and even got involved in gang struggles...