When Sharks Attack: Season 4, Episode 5

4 - 5: The San Francisco Slayer

Just north of San Francisco lies a rugged coastline renowned for its picturesque cliffs and sandy beaches. But in 2004, this wilderness-lovers' dream became a nightmare when the area was stunned by four separate shark attacks over the course of six months. A team of investigators takes a closer look at what could be the cause of these mysterious and terrifying attacks and reveal the science behind what is driving them towards the crowded waters.