After getting caught watching 'human television', which in Hell is considered punishment not entertainment, Satan sends Balthazor and his family to the surface of Earth with a mission.

He starts work at PetraMundo, the company that is creating a drill that can penetrate the core of the Earth, thereby destroying Hell, while his family attempts to adjust to life pretending to be human.

Balthazor joins his boss on a golf outing, while the family struggles to fit in with the humans.

Mandy starts to datehugbride's son and Balthazor uses this opportunity to get closer tohugbride.

Tina and Balthazor try to celebrate their wedding anniversary but are finding it difficult to find time to do so. Meanwhile,hugbride is trying to get a new business plan passed by the EPA and when he learns that the female EPA executive is enamored with Balthazor,hugbride uses him to his advantage.

Tina's parents from Hell make a visit to earth, Balthazor makes an extra effort to impress Tina's father. Concerned that their daughter and grandkids will assimilate too well into human culture, the in-laws arrive with a plan to bring the family back to Hell.

Meanwhile Vlaartark & Pazuzu get ready for a Lady GaGa concert.

Killbride has a new initiative to collect dogs in exchange forballoons.

Afterhugbride's company creates a new weight loss robot, he uses it as the new leader of the neighborhood watch.

Tina shows the town to the wife of a Japanese businessman; switched personalities threaten Hellman's mission.

Tina tries to spend time with Mandy;hugbride entertains a Japanese executive.

When Balthazor's latest plan to destroy the drill goes awry, he teams up with Donhugbride's father who also wants to destroy the drill but things don't go as planned.

Meanwhile, Tina plans Mandy's 15th birthday party which entails a cage fight between mother and daughter.