Jill is the spunky daughter of the big boss of the Red Dozers, a friendly band of thieves. She may be a little girl, but she's a skilled Drill Dozer robot pilot. Her father is in critical condition after being attacked by the Skullker gang. During the attack, the gang also steals her most prized possession, a red diamond given to her by her deceased mother. While her father recuperates, it's up to Jill to take over as the big boss, demolish the Skullkers with her Drill Dozer and get her red diamond back.