Cassie Mitchell is stuck in the most embarrassing first day of school ever. "Stuck," as in she'll have to repeat her first day again and again until she gets it right. Will practice make perfect? Or is Cassie doomed to get called on, called out, and passed over by her hot new crush for all eternity? Watch Season One of FIRST DAY, from the executive producers of PRETTY LITTLE LIARS, and find out. And stay tuned for First Day 2: First Dance, premiering on 9/9!