(Scene opens up showing Phineas and Ferb sitting under a tree) Linda: Hey boys, want some fat-free whole-grain granola bars? They're still warm from the oven. Phineas: Whole-grain and fat-free? (He and Ferb take a granola bar) You know us so well. Linda: (Walks off) Yes, yes I do. (Phineas and Ferb eat their granola bars) Phineas: You know, Mom's always doing nice things for us. I think it's time we did something nice for Mom! Let's see... We could—No... (Quiz show music plays) Phineas: Or—Uh uh. (Ferb gasps) Phineas: Huh... (He and Ferb repeatedly gasp. They stop and the quiz show music plays again slowly) Isabella: Hey, Phineas! Whatcha doin'? Phineas: We're trying to think of a nice thing we can do for Mom. Any ideas? Isabella: You can clean up the whole house for her! Baljeet: Or, you