A long-lost map drums up some excitement in Middleton, as adventure seekers spring into action in "The Treasure." After finding the treasure map, Martha (Catherine Disher) sends Vincent (Gianpaolo Venuta) on a treasure hunt - which leads to an unexpected competition between Vincent and another treasure seeker. After finding out that his wish as a teenager was to make a discovery, Cassie (Catherine Bell) encourages Sam (James Denton) to keep his eyes open for mysteries to unlock, starting with this newly discovered map. Grace (Bailee Madison) is hurt to discover that Luke had been spying on Abigail (Sarah Power) for his Aunt Dotty - Donovan's (Marc Bendavid) mother. Abigail continues to spar with Dotty, until a crisis makes her reassess her relationship with Donovan. Meanwhile, Adam (Scott Cavalheiro) helps Stephanie (Kylee Evans) with the launch of her food truck.