Once upon a time, Scooby Doo and his friends Fred, Daphne, Velma, and Shaggy decided to take a vacation at a mysterious hotel. The hotel was old and creepy, with creaky floors and flickering lights. As they entered the lobby, the receptionist greeted them with a sinister smile.

As they made their way to their rooms, they heard strange sounds coming from the hallway. They decided to investigate and split up. Scooby and Shaggy went in one direction, while Fred, Daphne, and Velma went in another.

Scooby and Shaggy stumbled upon a hidden door that led them to a secret room filled with dusty old books and a mysterious map. Meanwhile, Fred, Daphne, and Velma discovered a hidden staircase that led them to a secret basement.

The gang reunited and used the map to solve the mystery of the hotel. They discovered that the hotel was haunted by the ghost of the previous owner, who was searching for a hidden treasure. With their bravery and cleverness, they caught the ghost and uncovered the treasure, which turned out to be a long-lost family heirloom.