"What Was Missing" is the tenth episode in the third season of Adventure Time. It's the sixty-second episode overall. Finn, Jake, BMO, Marceline, and Princess Bubblegum must come together and play music as a genuine band in order to open the gate of the Door Lord and retrieve their stolen items. The scene opens to Finn checking to see if no one else is home before pulling the lock of Princess Bubblegum's hair from the episode "To Cut a Woman's Hair" out from under the couch. He sits down and…
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