When all of the groom’s relatives asphyxiate at a wedding, the Fringe division investigates and quickly ascertain that a human agency is responsible. Walter realizes that the formula for the…

Clark believes a recent attack in a theater may be the work of a serial killer; Davis fears that his blackouts could mean that he is the killer.

Jimmy catches a red and blue blur on film when he takes a picture of Clark saving Lois from a mugger; after Tess decides to run the picture on the…