Hook, Line and Sinker

S1, E14: Saw Boss blackmails King Phineas into luring Jayce with an image of his father to a planet where Saw Boss is ready to destroy him. Saw Boss makes good his threat to pull the Vortex Plug which would allow the atmosphere of the upper level to mix with the lower level forming a deadly poison. Phineas has a change of heart and leads Jayce through the radiation rapids with the help of Brock, who is the same kind of creature as Phineas. This is the only way to get to the plug in time and stop the Monster Minds. Phineas then pulls a similar trick on Saw Boss by creating an image of the root which draws the Monster Minds to it, allowing Jayce to defeat them.