This episode is about Princess Bubblegum and Lady Rainicorn searching to find Finn and Jake (who have been missing for a while), believing they were captured by the Ice King. They try tracking them down on a GPS and heart monitor. Along the way, PB and Lady are attacked by various monsters, and they loose their weapons. I think that as a female character, PB proved herself worthy. Observing the heart monitor, she thinks she's coming close to the Ice King, when it is really Ricardio, back from 3 seasons ago, only this time, he has arms and legs. There, PB finds Finn and Jake poisoned by Zanoids. PB devises a way to defeat Ricardio, saying that if he can beat her at hand-to-hand combat, then she'll be his wife. Obviously, PB pulls his parts off, escapes with Finn, Jake, Lady, and the Ice King, and cures everyone back at the Candy Kingdom.
IT IS REVEALED THAT LADY IS PREGNANT (dun dun duunnn)
There are some serious flaws, though. First off, when Lady talks this much, YOU CAN'T UNDERSTAND HER. When she has a huge part in an episode, like this one, she should have subtitles in English. Second, this ep. kinda made PB look stronger than she actually is physically. If she's so strong, then why exactly is she getting captured all the time?
Overall great episode. Especially if you're a fan of PB or Lady.