The Sarah Jane Adventures (2007)

S2E7 Mark of the Berserker (1)

Luke is excited about his sleepover at Clyde's while Sarah Jane is away for the weekend. Unexpectedly, Clyde's estranged father, Paul, arrives, eager to reconnect with his son. At the same time, Rani uncovers that a classmate has a mysterious locket that possesses the ability to manipulate others.