"Fringe" is a sci fi show about an FBI division called "Fringe" that investigates a series of unexplained, seemingly supernatural events that often have to do with mysteries surrounding a parallel universe (again, thank you, wikipedia).
Olivia Dunham is the main character of the show. She is recruited to the Fringe division in the pilot, and completely rose to the challenge. She is strong, secretive, motivated, and smart. Olivia fails to conform to most "superheroine" stereotypes. She is never sexualized nor does she let her personal life get in the way of her job. Even when she is stuck in an evil parallel universe, Olivia stays true to herself and is able to fight and find her way home. In the parallel universe, she is sentenced to death, experimented upon, and ignored by men. Despite these torments and hardships, Olivia succeeds in beating them.
She also doesn't conform to the "women can't be successful in their career and have a successful personal life" stereotype either. Olivia built a strong relationship with one of her colleagues and was able to fix it even while Alternate Olivia from the other universe pretended to be her and sabotage her life.
Basically, Fringe is an excellent show with a strong, independent female lead. You should all watch it!