Angel III: The Final Chapter (1988)

Molly is now a freelance photographer in New York. She runs across a woman at an art show who looks familiar. She goes to Los Angeles to find out that this woman is, in fact, her mother. She also finds out she has a sister. The reunion is short-lived when her mother calls her to tell her that her sister is in danger; later, she gets killed in an explosion. To try to find her sister, Molly must once again become Angel.