When Amelia Earhart accidentally time travels back to ancient Greece, Abby and her stepbrother, Doc, must persuade her to return to her own time and finish her solo flight across the Atlantic Ocean.
When a spaceship carrying Neil Armstrong accidentally time travels to 1869 Texas, cowboy Nat Love decides to trade in his horse for a trip to the Moon, and stepsiblings Abby and Doc must untwist history and get everyone back to their own time.
Abby and her stepbrother, Doc, must persuade Abraham Lincoln to play his part in history after one too many comments about history being boring cause him to go on strike.
When Abigail Adams decides there's more to life than doing chores in the White House, she joins a crew of Caribbean pirates! Can siblings Abby and Doc set history straight? Or will they be the ones who need to be rescued?