Watch The Summer I Turned Pretty Season 1 full movie online 0123movies. Watch The Summer I Turned Pretty Season 1 123movies online for free. The Summer I Turned Pretty Season 1 Movies123: Every summer, Belly and her family head to the Fishers’ beach house in Cousins. Every summer is the same ... until Belly turns sixteen. Relationships will be tested, painful truths will be revealed, and Belly will be forever changed. It’s a summer of first love, first heartbreak and growing up — it's the summer she turns pretty.