A Simpson in Time

A Simpson in Time is the twenty-second episode of the third season of Yuna's Princess Adventure.

Plot
Princess Yuna and her friends learn about things gone bad for the Simpsons but they came up a plan to go back in time by using the DeLorean Time Machine, the Jules Verne Time Train and the Mighty Bus (that got upgraded to time travel) and stop the Nightmare Family, Bill Cipher, the Fearsome Crooks, the League of Villains, Jackson Storm, Ripslinger, Ned and Zed, Christine and K.A.R.R. and the government agents to go after Mona Simpson and steal the Journals.

Trivia

 * This episode marks the first appearance of Mona Simpson.
 * Princess Yuna and her friends (with the help of Bart Simpson, Lisa Simpson, Fizzlepop Berrytwist and Grubber) will go back in time in order to save Mona from the government agents.
 * The Nightmare Family, Bill Cipher, The Fearsome Crooks, The League of Villains, Jackson Storm, Ripslinger, Ned and Zed, Christine and K.A.R.R. will help the Government Agents and Russ Cargill to go after the Journals.
 * Yuna will defeat the government agents by using the Memory Gun to erase memories of Mona.
 * Yuna, her friends, Bart, Lisa, Fizzlepop and Grubber will use the DeLorean Time Machine, the Jules Verne Time Train and the Mighty Bus (that got upgraded to time travel).

Transcript

 * A Simpson in Time (Transcript)