Phineas and Ferb: 104 Days of Summer! Season 1 Episode 101 Sidetracked

Phineas and Ferb: 104 Days of Summer! season 1 episode 101 is titled "Sidetracked." In this episode, viewers join Phineas and Ferb on another adventure-filled day of their summer vacation. The episode starts with the duo brainstorming for their next project when Candace bursts in with an urgent mission for them.

Candace is a member of a group of secret agents, the O.W.C.A (Organization Without a Cool Acronym), and she needs Phineas and Ferb's help to rescue Agent P - their pet platypus who is also a secret agent - who has been captured by their nemesis Dr. Doofenshmirtz. Determined to help their furry friend, Phineas and Ferb set off on a wild chase to find and rescue Agent P.

The mission takes them through various locations and modes of transportation, including a train ride where they encounter an old nemesis, a rogue agent, and a whole lot of mishaps and twists along the way. They navigate through a museum, the forest, and even a circus, all while being chased by Dr. Doofenshmirtz's henchmen and fighting off obstacles that threaten to derail their mission.

Throughout the episode, viewers also get to see the parallel story of Agent P as he tries to escape from Dr. Doofenshmirtz's clutches. The platypus showcases his spy skills and resourcefulness as he cleverly outwits his captors and engineers his escape.

As they get closer to their goal, Phineas and Ferb's mission gets sidetracked when they embark on a wild chase through the circus. The chase ends up damaging the circus tent and leads to the arrest of the group by the authorities. As they are taken away by the police, Candace, who had been trying to bust her brothers all along, comes to their rescue and convinces the police to let them go.

In the end, Phineas and Ferb, with the help of their sister and Agent P, finally manage to rescue their beloved platypus and thwart Dr. Doofenshmirtz's evil plan once again. The episode ends with the family gathering together, and Candace finally admitting to enjoying the wild adventures her brothers get into every summer.

Overall, "Sidetracked" is an exciting, action-packed, and hilarious episode that showcases the series' trademark humor and creativity. Viewers get to witness the adventurous spirit of Phineas and Ferb as they embark on a rescue mission to save their beloved pet. The episode is also unique in that it highlights the parallel storylines of Agent P and the duo, adding depth to the characters and the plot.