The Feliner is attacked by the RatStar, manned by the Mutants. Jackalman, Monikan, and S-S-Slithe are ejected and saved by Mumm-Rana, a female mirror image of Mumm-Ra, who is a force for good.
To prove themselves worthy of being ThunderCats, the ThunderKittens borrow the other ThunderCats' weapons and practice with them. They are ambushed by Mutants, who take their weapons.
The agency Christmas party is interrupted by three gun-wielding Santas who take everyone hostage and threaten to blow up the building.
The father of a soldier killed in training claims that the body, which Nick escorted home, does not belong to his son.
A distant relative of Tony's comes to town to meet the man she is to marry through an arranged marriage. Upon learning that the intended groom is a male chauvinist, Tony throws him out of the house and forbids him to marry his cousin. But this infuriates her father, who flies from Italy to confront Tony.
Ms. Dipesto finds a baby left in her apartment by a woman named Mary fleeing from the hit men who killed her husband, and Dave and Maddie quarrel over using the agency phones as a "Santa hot line."
The concluding trial in Lion-O's Anointment Trials pits him alone and weaponless against the evil Mumm-Ra.
Vantu's sorcery continues. Flora is still sick and very contagious. They head for the planet Andarin with it's powerful energy strong enough to save Flora. Unfortunately, they are heading right into a trap of Vantu's. They find the wizard, Warp.
A little boy helps Santa when the legendary man is thrown in jail while delivering presents.
When a woman is electrocuted in her bathroom, Amos chuckles that even Jessica can't make a murder out of it. Michael Dugby: Parker Stevenson. Harry Pierce: John Astin. Frederich Hoffman: Paul Benedict. Adam Frobisher: Christopher Stone. Edna: Evelyn Keyes.
The Autobots capture the Stunticons during one of their thefts. With the Stunticons now imprisoned, Wheeljack presents a way to disguise Autobots as them. Going undercover, Optimus Prime, Jazz, Mirage, Sideswipe and Windcharger infiltrate the Decepticons and learn the Stunticons were trying to steal a part for a laser. However, the plan hits a snag after the real Stunticons escape.
Misled by schoolmate Richmond Matzie, Punky shoplifts a winter scarf for Henry as a Christmas present, and unknowingly switches bags with Mike -- and an innocent Mike is put in jail, but Punky and Henry get Mike out when Punky explains everything.
Harry attempts to locate a woman's boyfriend who mysteriously disappeared the night he proposed to her. The case takes a surprising turn when Harry is offered a bribe to end his investigation.
Sunni finds a baby cliff dragon with a hiccup, and a swig of Gummiberry juice only aggravates the problem.
When their church loses their land lease, the tenants must find another lot to place their church on. They enlist Lester's company's help to move the church to its new spot. Everything is ok, until the church comes up missing. Everyone is worried because they will have no place to have their Christmas pageant. They decide to build a large manger on the empty lot to hold the service. They later find out that the church was placed at the wrong lot.
Rose has been dating Dr. Jonathan Newman and begins to think their relationship is leading to the altar. However she begins to have second thoughts especially since he's a midget.
At the funeral of a Vietnam comrade, Hawke takes it upon himself to deliver the man's coffin flag and Congressional Medal of Honour to the soldier's brother, Billy Fargo. But arriving in the small rural town where Fargo is reported to be living, he finds the whole area inhabited solely by youths, all under their ""father"" Fargo's influence. Fargo emerges to be a deranged ""peace-loving"" hippie, who, with his wily cohort Sabrina, is planning to use the youngsters to help in a plot to make a destructive anti-nuclear statement to the world...