The Dog's Dinner (GUNK Aliens)

What could be worse than fighting snot-stealing aliens?  Here's a hint: it lurks in the cafeteriaThe gang face their toughest challenge yet, as they go after a terrifying flying alien. In an epic confrontation, Jack's inventing skills will be tested to the limit, one of his new friends will fall, and all of his courage will be needed when he takes on the worst ordeal of all . . . eating a school meal.