The daughter of former Gov. Sarah Palin will take over the life of Rivers' daughter Melissa, stepping in as executive producer of "Fashion Police," throwing lavish Hollywood dinner parties and caring for Melissa's 12-year-old son, Cooper.
Meanwhile, Melissa Rivers will trek north to Alaska, where she'll take on the wilder climate while also trying to tame the wild in Bristol's 4-year-old son, Tripp.
The episode airs June 23 on ABC.
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