Hundley's Great Escape (AKA: Curious George Ramps It Up) (S04E06)

Hundley decides to return a toy that a baby accidentally left in his lobby. However, when George spots Hundley dashing down the street with the toy, he mistakenly thinks it’s time to play, causing a delay. Hundley is dismayed to see the baby leave on a bus without the toy, and his frustration grows when Gnocchi snatches it and vanishes through the basement window of Pisghetti's. George and Hundley chase after Gnocchi, only to find themselves locked inside. While George and Gnocchi can escape through the window, Hundley cannot. George cleverly builds a ramp to help Hundley climb out, but now they must find the missing baby.