Watch Cruel Summer (2016) HD Full Movie Free on SolarMovie. Watch Cruel Summer (2016) online free. Young Autism sufferer Danny enjoys the serenity and solitude of camping. That's all about to change ...Young Autism sufferer Danny enjoys the serenity and solitude of camping. That's all about to change when enraged teens Nicholas, Calvin and Julia find him, each with their own agenda for wanting to see Danny suffer.