Circus Flora enters its 33rd season with “The Caper in Aisle 6,” which — with the help of aerialists, acrobats, high-wire daredevils and more — reveals the secrets of a magical grocery store. Circus Flora’s season returns to June after trying out earlier spring dates last year. This is the second year in the troupe’s new, permanent home in Grand Center. Performances run June 6-30. A peanut-free preview night is June 6, and a sensory-friendly performance is June 20.