During her Christmas holidays with the royal family at the Sandringham estate in Norfolk, England, Diana Spencer, struggling with mental health problems, decides to end her decade-long marriage to Prince Charles.

Flush with their revival's success, Kermit the Frog and his friends are approached by Dominic Badguy (Ricky Gervais) to go on a world tour. Unbeknownst to them, this is all part of the sinister plan of Constantine, the world's most evil frog, to become the greatest thief of all time. After making sure that Kermit is jailed as him, Constantine impersonates him to use the Muppets' tour as cover for his scheme. While Sam the Eagle and Inspector Jean Pierre Napoleon (Ty Burrell) investigate, the...