I need the summary of the story Double the Danger and Zero Zucchini by Betsy Uhrig.

Double the Danger and Zero Zucchini is a children's mystery novel written by Betsy Uhrig. The story revolves around the 11-year-old protagonist Alex Gravel, whose summer plans of watching TV and playing video games get thwarted when his mother signs him up for a backyard gardening program called "Gardening for Groundwork." Alex hates vegetables and is skeptical about gardening, considering it as boring and the likely cause of his untimely death.

At the gardening program, Alex befriends three other kids - Emily, Rashawn, and Sophie. Joining them is their gardening coach, accomplished illustrator Mr. Davis. Surprisingly, gardening does not turn out to be the snoozefest Alex thought it would be; in fact, he starts to enjoy it. The friends learn about composting, teamwork, and organic gardening techniques.

However, strange things begin to happen around Mr. Davis. He starts receiving odd phone calls, suspicious people lurk around his studio, and expensive art supplies go missing. It turns out Mr. Davis is working on a map for a secret treasure hunt. The treasure hunt is tied to the town's 250th-anniversary celebrations, and the map leads to a box containing valuable artifacts and stories about the town's founding families.

As the plot thickens, Alex and his friends decide to help Mr. Davis keep the map safe and find the hidden treasure. The group must rely on their intelligence and wits, piecing together clues from the town's history to uncover the treasure's location. Amidst their adventure, they face various challenges and dangers, including sneaky villains and mysterious events.

Throughout the story, readers follow Alex's journey from a vegetable-hating, reluctant gardener to an engaged and responsible young adult who forms close friendships and embraces new challenges. Double the Danger and Zero Zucchini is a fun, fast-paced mystery that keeps readers engaged while subtly teaching them about gardening, teamwork, and the importance of embracing new experiences.