Phineas, Ferb, Baljeet, Buford, Django, Irving, and Isabella are in the backyard. Phineas has just invented a 1:1 replica of the London Eye, and the friends are playing in it. At sunset, everyone has had a good time. All except Isabella leave, who stays to chat up Phineas. While talking, the London Eye comes crashing down on Isabella, killing her. Phineas freaks out, assumes nobody saw it happen, calms down, and has an idea.