Fight Or Flight

In Ireland, Peter tries to move beyond his past, but soon discovers that Elle, a mysterious woman, would go to any length necessary to find him. Matt strikes an unexpected ally to head with him to Philadelphia to find the "boogyman" following Molly being attacked. Meanwhile, Suresh has a meeting with his new partner and receives a disturbing assignment; Monica tries to adjust to her life as a hero; H.R.G. has to go to lengths to protect his family; and Hiro continues to try to fix the past while Ando tries to put together what happened to his friend.