When an unemployed Detroit man is arrested for a crime he didn't commit, his three children are determined to get him out of jail in time for Christmas and they decide to enlist the help of "the most powerful man in the world" - President Hoover. En route to the White House, they meet an array of colorful characters.
A massive crack in the earth's crust threatens the world with deadly gas from the planet's core. It's up to a geologist and his family to battle ice geysers and avalanches to save mankind.