Mozzie narrowly escapes death & Neal uses his contacts to help Peter find Mozzie's shooter: Julian Larssen. Peter & Neal set a trap for Larssen but he manages to turn the tables on them, making it look like Peter planted evidence. Larssen is released & Peter is suspended from the FBI. Peter enlists the help of Neal, Jones, Diana, Sara, Mozzie & even Elizabeth to run a sting, finally catch Larssen & clear his name.