The Ghost of Harrenhal
S2, E5: The end of the Baratheon rivalry drives Catelyn to flee, Tyrion is alerted to Joffrey's flawed defence plan, Arya receives a promise, and the Night's Watch arrives at an ancient fortress.

S2, E5: The end of the Baratheon rivalry drives Catelyn to flee, Tyrion is alerted to Joffrey's flawed defence plan, Arya receives a promise, and the Night's Watch arrives at an ancient fortress.