Shunka Wakan (Richard Harris), formerly Lord John, helps his Dakota son (Michael Beck) defend their tribe against gold rushers.

A beautiful muse inspires an artist and his older friend to convert a dilapidated auditorium into a lavish rollerskating club.

Prominent gang leader Cyrus calls a meeting of New York’s gangs to set aside their turf wars and take over the city. At the meeting, a rival leader kills Cyrus,…