Lifelong friends since they met as boys at Peking Opera school, Jackie Chan and Sammo Hung conquered the Hong Kong film industry side-by-side in the 1970s and 1980s. One of their greatest collaborations sees the two 'brothers' playing actual brothers for a change: 1985's Heart of Dragon, a film that combines heart-rending drama with pulse-pounding action!

Tat (Chan) is a hotshot cop with more stresses than he can bear: if he's not on the verge of getting beaten up on his day job, he's looking out for his mentally handicapped brother Dodo (Hung), who needs constant supervision in case his naïve, kind nature gets taken advantage of. Tat wants nothing more than to escape his obligations and see the world; but when Dodo accidentally winds up in the line of fire, Tat must run into danger and make the ultimate sacrifice to save his brother.

More serious and emotionally driven than many of their prior films, Hung and Chan made sure not to skimp on jaw-dropping stunts and high-velocity violence while showing a broader depth to their talents than audiences had seen before. The result is one of the jewels of 80's Hong Kong action cinema, now restored with additional fight scenes filmed especially for the Japanese market!