When Carlos falls into a hole while digging for lost treasure, he's saved by Tracker, a puppy that calls the PAW Patrol for help and then joins the team.

Geof Smith is a children's book author and editor. He doesn't currently have a pet, but hopes to one day solve crimes with a super-intelligent chimpanzee. He has worked on A New Hope (Star Wars) and Everything I Need to Know I Learned from a Star Wars Little Golden Book, among others.

Jason Fruchter has been an animator and illustrator for children's media for decades. He graduated from the Rhode Island School of Design with a BFA in 1992, and later moved to New York City to work for MTV Animation. In 2001, he cofounded A&J Studios, and has worked with Cartoon Network, Disney, Nickelodeon, and Sanrio. His books include Callie's Cowgirl Twirl, Christmas Countdown, and Alphabet Magic. He lives in Seattle, Washington.