Fact1: Muppets go on European tour with him as tour manager, Fact2: criminal mastermind named joins Dominic to begin plot to steal Crown Jewels of United Kingdom, Fact3: Kermit Frustrated with goes for walk at Dominic 's suggestion group 's incessant requests and Miss Piggy 's insistence, Fact4: Constantine 's blunders in imitating him are covered by Dominic Taking Kermit 's place, Fact5: Constantine and Dominic to schedule next show in Dublin
Output: Following the events of the previous film, The Muppets find themselves at a loss as to what to do until Dominic Badguy suggests the Muppets go on a European tour with him as their tour manager. As the Muppets begin their tour, a criminal mastermind named Constantine, a nearexact double for Kermit the Frog in appearance, escapes from a Siberian Gulag and joins his subordinate Dominic to begin a plot to steal the Crown Jewels of the United Kingdom. Once the Muppets arrive in Berlin, Germany, Dominic secures them a show at a prestigious venue. Frustrated with the groups incessant requests and Miss Piggys insistence they marry, Kermit goes for a walk at Dominics suggestion. Constantine ambushes him and glues a fake mole onto his cheek then slips away. Mistaken for Constantine, Kermit is sent to the Gulag. Taking Kermits place, Constantines blunders in imitating him are covered by Dominic; however, Animal knows the truth. After the Berlin performance opens with Constantine freezing at the audience, Scooter has to introduce the show. Constantine and Dominic steal paintings from a museum while the Muppets perform. The next morning, Interpol agent Jean Pierre Napoleon and CIA agent Sam the Eagle grudgingly team up to apprehend the culprit whom Napoleon believes to be his nemesis The Lemur  the numbertwo criminal in the world. Meanwhile, Kermit has attempted several times to escape the Gulag but is thwarted each time by prison guard Nadya, who is not only aware of his true identity but is as infatuated with him as Miss Piggy is. Nadya orders Kermit to help organize the prisoners annual talent show. Following hidden instructions on the stolen painting, Constantine and Dominic divert the tour to Madrid, Spain. Constantine allows the Muppets to perform whatever they wish, much to Walters confusion. During this show, Constantine and Dominic break into a museum and destroy a roomful of busts to find a key needed for their plan. Even though the performance is a disaster, the Muppets receive critical acclaim. Sam and Napoleon deduce that the connection between the crimes is the Muppet tour, and the pair interrogates the Muppets, only to find that they are too illequipped to be guilty. The instructions on the stolen key lead Constantine and Dominic to schedule the next show in Dublin, Ireland. In Dublin, Walter discovers that Dominic has been giving away show tickets and bribing critics to ensure a packed house and rave reviews, while Fozzie Bear notices Kermits resemblance to Constantine. They both realize that Constantine has taken Kermits place and brought in Dominic as his accomplice. Constantine attacks Walter and Fozzie, but Animal fends him off and the three escape from the train to rescue Kermit. During the Dublin performance, Dominic steals a locket from a museum and Constantine proposes to Miss Piggy onstage; Piggy accepts, and the pair plan a ceremony to be held at the Tower of London in London, England, where the Crown Jewels are kept. Fozzie, Walter, and Animal reach the Siberian Gulag on the night of the performance, and Kermit uses it as a front to allow them, himself, and all the prisoners to escape the Gulag. Kermit, Fozzie, Walter, and Animal infiltrate the Tower as the wedding begins, and Dominic with the help of Bobby Bensons Baby Band manages to steal the jewels. Kermit interrupts the ceremony, revealing Constantines ruse, but the crook takes Piggy hostage and flees to a helicopter, where he is intercepted by Dominic, who is actually the Lemur and intends to doublecross him. Constantine ejects him from the helicopter and tries to take off with Piggy, but Kermit jumps aboard and the rest of the Muppets climb atop each other to stop the escape. Kermit and Piggy knockout Constantine and both criminals are arrested. Nadya arrives in London to arrest Kermit for escaping. The other Muppets tell her that if she arrests him, then she will have to take all of them as well; she relents, allowing Kermit to go free. The Muppets perform at the Gulag with Constantine and the prisoners participating, ending the film.