March 9, 2016 Flex5 by PetroFitness Workout, Nutrition, Boot Camp Flex5 Is Bringing Back Say I Do Boot Camp Series for Season 5! March 9, 2016 Flex5 by PetroFitness Workout, Nutrition, Boot Camp Season 5 of Say I Do Beach Body Boot Camp Series is designed to challenge your mind, body and spirit and get you back in shape for the summer! Begins 3/29.