Reports of a strange phenomenon at the fringe of the galaxy and its connection to one of Father's old friends send the entire Mumby family, accompanied by Jack and other friends, to a far-off planet where they must find a way to prevent a new invasion of the solar system by giant moths.

"It's late August, 1592. Sir Robert Carey, cousin to Queen Elizabeth from the wrong side of Henry VIII's blanket, remains at his post on the Borders at Carlisle. He has at last been confirmed by his monarch as Deputy Warden, is still deeply in love with Lady Elizabeth Widdrington while despising her elderly, abusive husband (will the man never die?). And he remains estranged from his dour but lethal henchman, Henry Dodd, Land-Sergeant of Gilsland,...

Carlos brings a space game to school. Then the Magic School Bus takes a field trip inside the game! Can Ms. Frizzle's class answer the space clues and make it out of the game? Blast off with the Magic School Bus and learn all about the solar system!