90s. Summer begins outside a sunny rural town. Marta, cheerful and innocent 12 -year -old girl, enjoys her friends playing football, swimming in the river, riding a bicycle and building the same cabin every year. Everything in his world within the town is perfect, but Marta is different from the other girls: in addition to being the leader of her gang of friends, she is the only girl in the group. Although gender has never been a problem in their friendship, this is about to change: Loren, a 16 -year -old boy, comes to the town and approaches Marta's friends, causing them to change her gaze towards her. Loren has come to stay, and with him puberty and gender roles. Will Marta lose her innocence and accept the new rules?