An alien is left behind on Earth and saved by the 10-year-old Elliot who decides to keep him hidden in his home. While a task force hunts for the extra-terrestrial, Elliot, his brother, and his little sister Gertie form an emotional bond with their new friend, and try to help him find his way home.
Though she can spin wild tales of passionate romance, novelist Joan Wilder has no life of her own. Then one day adventure comes her way in the form of a mysterious package. It turns out that the parcel is the ransom she'll need to free her abducted sister, so Joan flies to South America to hand it over. But she gets on the wrong bus and winds up hopelessly stranded in the jungle.
The eccentric and childish Pee-wee Herman embarks on a big adventure when his beloved bicycle is stolen. Armed with information from a fortune-teller and a relentless obsession with his prized possession, Pee-wee encounters a host of odd characters and bizarre situations as he treks across the country to recover his bike.
