Three Tall Tales

Candace is unable to fall asleep, so Phineas and Ferb read her bedtime stories (each a parody of classic fairytales)

Plot
Phineas and Ferb go to bed after a day of inventing and fun. Candace runs into their room and hops onto Phineas' bed. She says she was woken up by a nightmare and can't go back to sleep. Phineas and Ferb decide to help her out by reading her stories. They find a book of fairytales and Phineas starts reading.

Izzy Red Riding Hood
In the role of Red Riding Hood, Isabella is told by her mother to deliver a basket to her grandma. Isabella merrily skips through a forest, attracting the attention of a hungry wolf (Doofenshmirtz). After learning about the quest, he takes s short cut to grandma's house and plans to eat her.

''Candace interrupts the story, saying this is too disturbing to help her sleep. So Phineas alters the story.''

The wolf puts on a disguise and jumps in bed. Isabella arrives and asks why "grandma" has such a big nose, eyes and teeth. The wolf says he's putting on weight, accidentally revealing his cover. But before he could get his paws on the girl, a lumberjack (Perry) bursts in and proceeds to cut the wolf open.

''Candace interrupts again, asking how this is supposed to be a kid's story. Phineas says this is how the original story went, but then decides to alter it again.''

Using his axe, the lumberjack shaves off Doofenwolf's fur, revealing him to just be a hairy feral man. He jumps out the window to be locked in an ambulance and presumably taken to an asylum. Grandma comes out of the kitchen with a tray of cookies, which she offers to her guests.

''Candace wonders why the lumberjack was a platypus, but this was only what was in her head, not the book. Phineas says she needs to lay off the chilli before bed.''