Twins Meg and Charlie are moving into their great-great-aunt's hotel, and they're in for some surprises! The run-down hotel is full of cool old rooms, a rooftop garden, even an elevator. There's also one big problem--it doesn't have any guests. But when Meg and Charlie volunteer to look after a neighbor's golden retriever puppy, the fuzzy little furball gives them a great idea. They're going to transform their new home into an amazing hotel...for pets!