Mack (Rachel Griffiths) stresses over her parents' arrival for the annual Harvest Moon Festival. Her larger-than-life father, Jack Granddad Jessup (Jack Thompson, The Great Gatsby), decides to launch a prank war against Camp Ridgefield. Marina (Lily Sullivan) faces a pregnancy scare and Kip (Thom Green) comes to her aid when Greg (Jordan Rodrigues, Dance Academy) flakes. Meanwhile, Robbie (Tim Pocock) spots Sarah (Dena Kaplan) over at Ridgefield and is disgusted to learn that she is now working for Roger (Rodger Corser).
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