Uh-oh. The Lying Game‘s Emma is going to catch her scheming sis Sutton in a big fat lie this Tuesday (ABC Family, 9/8c), and we’ve got your exclusive first look at the revelation.

Remember last season when a masked intruder forced Sutton to crash her car, nearly killing her? Well, it turns out that a lot more happened after that than she’d led everyone to believe — and Emma is about to start piecing the events of that night together.

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Press PLAY below to watch the clerk at Emma’s motel spill Sutton’s secret, then hit the comments.