Deep in the Dartmouth High basement — past heaps of foul football equipment and down never-ending hallways — a team of 15 students has dedicated themselves to a Jillian Michaels workout video in the fitness room.

The team is cross-training for its first run, the Fairhaven Turkey Trot 5K. It's the first of four runs for Dreamfar, which gets its workout schedule from the Greater Boston branch of the nonprofit that focuses and trains teens to run a marathon.

Although the team started training on October 3, it's already done bodyweight training — including pushups, wallsits, and other exercises dependent on bodyweight alone — and weight training, said co-leader Sarah Labossiere.

Mondays and Wednesdays are reserved for running, but come mid-November, Saturdays will also be running days. So far, the runners have built their endurance to two miles, but as part of the 30-week program, they'll be working toward a 26.2-mile goal, said Labossiere.

"You don't have to be an athlete. You don't have to have run a step before," she said. "We train [students] to complete the marathon, not compete in it."

The Dartmouth branch of Dreamfar formed last year, but already, it's faced problems with transportation. To fundraise, they borrowed an idea from their South Coast partners — Old Rochester Regional High School. Old Rochester made $800 last year with a clothing drive, and now, Dartmouth is looking for donations from the community to help pay for buses, team jackets, and snacks for the students.

Clothing, accessories, and household goods will be collected after school on November 4 at Dartmouth High School and on November 5 and 6 at Town Hall. The team will then bring the donations to Savers Thrift Store, which pays the nonprofit running group per pound.

This will keep teammates, like 11th-grader Jillian Greeson, running.

"My main motivation is to conquer asthma," she said, breaking from her workout and pointing to the inhaler on the floor mat. She's jumped from sport to sport looking for something to keep her active. "So far, I've run a mile and a half without stopping. I really like running even though it's a struggle."

The team is always accepting new students, "especially kids that are doing a fall sport." said Labossiere. "They're already conditioned."

Though the course of the program, the team will also participate in a 10K, half marathon, and full marathon.

The Dartmouth team is one of 17 schools in the state participating in the Dreamfar program.