When Tree Rogues steal Pegasus, the magical winged horse, Nick and Lisa, with the help of a young Greek boy, must lay their own trap to set the horse free forever.
Nick and Lisa, along with kids they meet in Scotland, discover a rumored sea serpent in a local loch. The villagers, however, vow to destroy the unique beast.
Lost at sea, Nick and Lisa are taken aboard a Greek warship on its way to the city of Troy. Befriending the Captain's son, Nick and Lisa become a part of the plan with Odysseus to capture Troy from inside the Trojan Horse.
When Thor is stricken and his powerful hammer is stolen by malevolent giants, Nick and Lisa must help Thor's son and daughter recover the hammer from evil giants.
As the gold seeking invaders arrive at Tenochtitlan, Nick and Lisa, help Montezuma's daughter race to the ancient temple to restore the prized golden amulet back to its rightful place.
Lisa becomes a friend of the Camelot court and unwittingly helps lure Queen Guinevere into the clutches of the evil Morgana. Since the Knights of the Round Table are away, Nick and a young Squire must come to their rescue.
In hopes of getting a wish from a leprechaun Nick leads Lisa and their new friend, Devlin, to the enchanted leprechaun village only to realize that Devlin has tricked them and wants to destroy the Leprechauns.
