On the latest episode of 'Family Guy' (Sun., 9PM ET on Fox), Stewie Griffin's active imagination gets the better of him -- leading him into a patented 'Family Guy' dream sequence. In the clip, Stewie battles Peter Griffin's enormous chin... with lasers, in a sci-fi inspired parody. It's a combination of some of the all-time great nerdy obsessions: cartoons, 'Family Guy' itself -- and then, of course, science fiction. It's a thing of pure beauty, really.

Watch the video after the jump.On the latest episode of 'Family Guy' (Sun., 9PM ET on Fox), Stewie Griffin's active imagination gets the better of him -- leading him into a patented 'Family Guy' dream sequence. In the clip, Stewie battles Peter Griffin's enormous chin... with lasers, in a sci-fi inspired parody. It's a combination of some of the all-time great nerdy obsessions: cartoons, 'Family Guy' itself -- and then, of course, science fiction. It's a thing of pure beauty, really.