Not only must Helen prevent Worth from altering the timeline, she must take great care not to do so herself, especially once she’s arrested and bailed out by John Watson. Along the way, we get more details regarding one Mr. John Druitt and his role as Jack the Ripper. There’s a little revelation that came as a great surprise to me. Oh, and get ready for an ending that will leave your jaw lying on the floor long after the end credits roll. Let’s just say the way back to the present is not an easy road to travel for Helen.