After figuring out the last clues of the Mosconi Code, Neal and Peter try to find the Diamond before somebody else can get to it first.
When Neal and Peter realize that a client trying to reach Rebecca hasn't seen her before, they interrupt Diana's maternity leave and ask her to pose as Rebecca in order to expose the client, a corrupt stock trader. Meanwhile, Rebecca offers necessary information in exchange for seeing Neal and Mozzie figures out how to solve the last of Mosconi clues.moreless
After learning Rebecca lied to him, Neal finally tells Peter about the Mosconi Codex, resolving the tension between them. Peter realizes Rebecca has developed real feelings for Neal and tries to use it to their advantage to lure her into a trap, but she can escape. Unwilling to put Neal's life at risk again, Peter asks Neal to step back. However, with Rebecca still holding Hagen's blackmail tape, Neal sets out on his own to get to her first.moreless
After learning of Neal's betrayal and part in Peter's release from prison, Peter is unwilling to forgive Neal and considers taking a new job as section chief in D.C. Meanwhile, Curtis Hagen captures Rebecca and pressures Neal and Mozzie into deciphering the hidden message from the codex that will lead to a mysterious treasure.moreless
The reappearance of a single Welsh gold coin that got Peter out of jail leaves Neal little time trying to stop Peter from getting to the truth. However, after weeks of growing doubts about Neal, Peter is already on the verge of discovering the truth about Neal's wrongdoings.
At the same time, Neal and Mozzie work on a plan to steal the stained glass window.
When a stolen shipping crate containing a fossilized dinosaur egg shows up, Peter and Neal try to find the Tyrannosaurus Rex skeleton that belongs to the egg. Meanwhile, Peter learns of Neal and Rebecca's relationship and Neal realizes his lie about his identity is getting in the way of his feelings for Rebecca.moreless
Peter's ex-girlfriend Agent Jill Stone shows up and asks Peter to help her get to a tech genius who is trying to sell a powerful microchip. When Jill requests that Peter shuts Elizabeth out from their case, an already jealous Elizabeth becomes even more worried and decides to do a little spy work on her husband which soon leads right in the middle of the action.moreless
Neal and Peter go undercover as the support crew of a rising Russian figure skater in order to get closer to a Russian mobster and a passport forgery ring.
In order to protect the fortune of a Manhattan family and to reveal an imposter, Neal goes undercover as a butler.
After the death of Neal's new handler, Peter and Neal team up again to investigate a psychiatrist suspected of manipulating former criminals to commit crimes.
Peter is getting used to his new assignments and Neal has to make a museum heist work.
Neal is assigned to a new handler and has a conflict of interests when an ongoing investigation leads to Mozzie.
Peter is charged with Senator Pratt's murder and Neal tries to exonerate him.
Neal and Peter try to get their hands first on the evidence box before Senator Pratt can interfere.
Neal and Peter have to deal with sculpture forgeries and a new boss. Meanwhile, Neal's father returns and Mozzie and Neal get closer to the evidence box.
In order to catch a Bonnie and Clyde like couple, Peter and Neal take different approaches.
Neal and Peter try to get closer to the ones responsible for destroying Neal's family 30 years ago and start investigating a senator and his involvement.
Neal and Peter try to find out what Neal's father did. Meanwhile, they investigate a member of the Irish Mob.
Tricks, Treats and Tresure!:
It's Halloween night in Never Land as everyone gets a "Trick-or-Treasure" Map, but Hook plans to steal their treats.
Season of the Sea Witch:
The Wicked Sea Witch plans to turn the Pirate Princess into a gold statue...again to make Never Land gloomy. It is up to Izzy and the crew to protect the Princess and to her to turn the witch from bad to good.
When Neal and Peter get word that a thief is trying to get his hands on defense technology, they visit a FBI conference to catch the thief in the act.
Neal gives stock trading a try when he goes undercover on Wall Street.
Some burglaries are going around involving rare pieces in museums.
Peter and Neal have to deal with political fixer who was hired to ruin the trial against a criminal Peter arrested.
When Mozzie, Neal and Peter find clues to a lost American treasure, they find themselves on a dangerous treasure hunt.
An art thief blackmails Neal into stealing an important piece of art in exchange for some valuable information about his past.
A beautiful widow is about to get a giant life-insurance payout but the guys think something is up.
A thief that has been on the run from the FBI for years is tracked down by the guys.
It's up to Peter to get Neal back to the US without him being arrested.
When a bounty hunter picks up Neal's trail, Peter tries to get to him first.
Agent Kramer's review of Neal's case puts his commutation in jeopardy.