Phineas and Ferb: The Perry Files - Animal Agents

The plot concerns a yeti who makes a pact with the devil to kidnap the most beautiful girl in the world. This turns out to be the Princess Lissi, who is clearly the Austrian Princess and later Empress Elisabeth of Bavaria, and much of the film is taken up with subplots related to the court and to the romantic relationship between Elisabeth and her husband. The film is thus a comic parody of the Sissi films.

The hobby detectives “The Three Investigators” want to take a little break. So they take advantage of an offer from Peter's father, who has accepted a job in South Africa and wants to take the detectives there. But Jupiter, Peter and Bob wouldn't be the three investigators marks feared by the criminal world if they just lounged around in the sun on their vacation. So it's no wonder that the clever boys soon have their next case to solve...

In London for the Prime Minister's funeral, Mike Banning discovers a plot to assassinate all the attending world leaders.