Doomsday Castle: Season 1, Episode 3 - ProjectFreeTV

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Brent Sr. sets up his children's next two key missions: learning military skills to fend off intruders with training by Military Mike, a retired Army Ranger; and creating a sustainable water supply by building a solar-powered water pump. Lindsey and Michael are first up for training with Military Mike while the rest of the family look for water to start their pump system. However, tensions intensify when communication breaks down and the family can't work together.