Moment From Fringe S02:E18

The White Tulip
I've ask God for a sign of forgiveness. A specific one. A white tulip...and if God forgives me for my acts. Maybe in the realm of possibility my son maybe able to forgive me too.
When the passengers on a commuter train all die instantly of massive power loss, the team realizes that a time traveler is responsible... and that it may be impossible to apprehend him. Meanwhile, Walter writes a letter to Peter explaining his origins.
Tags: FOX, fbi, supernatural, mad scientist, alternate dimension, fringe science