Return of the Lucky Stars

Return of the Lucky Stars (Alternative: "Lucky Stars Triad Society") is a 1989 Hong Kong action comedy film directed by Stanley Fung. It is the fifth film out of the Lucky Stars series.

Hong Kong Police Supt. Walter Tso arrests Big Dai, the reformed leader of a criminal corporation. When Dai asked his brother Richard Mao to turn himself into the police, he betrays him and decides to take over the corporation. Dai is imprisoned and an informant is murdered by one of Mao's men. With no evidence against Mao and the corporation, Tso coerced four of the "Five Lucky Stars" to go undercover in the prison, rescue Dai, and help nab Mao and bring down the corporation.