The players can't believe they've made it to Week 19 - the week they'll learn who makes it to the Final Four. Hannah's amazed to find a huge shirt she wore during Week 1 - now both she and Olivia can fit in it together! The sisters can't believe they made it this far. More than anything she's ever wanted, Olivia wants to be in the finals together with Hannah. They resolve that neither of them will go home this week. After his close call last week, Jay promises to redeem himself. Alison stops by to announce that it's Final Exams Week. Each trainer has prepared a test, and each player will be graded on a scale from one to 100 for each test; and the winner will be announced after the last exam is complete. There will be spinning with Bob, motivating with Jillian, boxing with Cara, and a health and wellness quiz with Brett. The best cumulative grade wins $10,000!