When they get there they meet a suspiciously hyper Museum guide who leads them into an auditorium. There they see a performance about Mexican customs. The guide then makes Daphne volunteer, and she kidnaps her, vanishing with a puff of smoke. The rest of the gang find a secret passageway and follow it, until they come to some Aztec pyramids. They find Daphne at the top of one and rescue her, but the tourists chase after them, thinking they have stolen something. After a long chase scene, they fin-ally return home. However, it is revealed the good luck charm Luis has is really a tracking device.
Back in Veracruz, they decided to go to the city museum for answers and for more research for their homework. As they got inside, a mysteriously hyper tour guide came and asked for a tour. Before they can answer she said, "Super" and took them off.
She lured them to the garden for a demo of Aztec sacrifice, with Daphne as the volunteered. As she placed the blanket over her body, they disappeared. Shaggy and Scooby suggested they go back to the hotel, but everyone else refused because they needed to save her. As Alejo, Fred, Luis, and Velma look for footprints on her kidnapping a voice said, "Have you finished your homework yet?"
It was an elderly couple, luckily The Celestian Alliance recognized them as La Muerte and Xibalba in their human disguises from the story. Xibalba told them that the mysterious tour guide who jumped to conclusions is a fake and their taking Daphne to the harbors. There they left to watch the people get ready with Xochipilli and Cresselia.
Will explained to the others where Daphne is, but didn't mention anything about La Muerte nor Xibalba.
Later at the harbors, they looked around for Daphne when they found some streamers leading to a bait shop. Inside, they found Daphne Blake bound and gagged. After they untied her, they found a piece of the puzzle map and Stitch held onto it with his extra arm.
Suddenly, a Quetzecotal came up and attacked. As the Pokemon Pets were attacking them, a familiar looking bus came in. It was the Veron Tours tour bus and inside it was Mama and Papa Veron, "Abuelos!" Cho exclaimed.
"Hop in kids!" Papa Veron shouted.
"What about The Mystery Machine?" Daphne asked.
"Your friends with the different skin tones and freaky hair is riding them." Mama Veron explained.
Behind them was the Mystery Machine and inside it were The Crystal Gems and the Mane 6.
"Garnet, Amethyst, Pearl!" they shouted.
"Jinkies," Velma suggested, "Those friends of yours found the bus."
The humans head into the tour bus, while Shaggy, CLST, and the animals headed for the Mystery Machine. In the Mystery Machine, the birds told them everything, except Iago, who was hogging up on plantains.
Back on the bus, they wanted to know why did they rushed to save them, "We knew that you might be in danger," Papa Veron explained, "So your Abuela and I rushed to find you."
"Dear," Mama Veron replied, "You haven't been this shocked since Bryssa found out she was pregnant with Chrisianna."
"True," Papa Veron replied, "And that Calvino never showed up for her birth, neither Senon and Corazana's."
"How come?" Zach asked.
"He said something about doing some work for this Team Plasma organization." Papa Veron explained.
"Luis," Ethan said to him, "Can I see your medallion."
Luis removed it and saw that the medallion had a red button and it was beeping, revealing to be a tracking device and wonder who would put it on him.