Lion-O becomes homesick, and his memories of Thundera are almost nonexistent. Jaga appears to Lion-O and tells him that on their spaceship, they brought with them a time capsule which contained a recording of Thundera and its history up to the time it was destroyed. The Thundercats set out to search for their time capsule.
Failing to cause a divide between the Decepticons and Insecticons, Mirage's mind suddenly becomes enslaved and he is used by them in a plot against the Autobots.
The Ewing family come together for Bobby's funeral. Dusty informs Sue Ellen that he is in love with her. Miss Ellie is happy to see Gary back home for a while.
After Sue Ellen gets drunk again, a worried Clayton and Miss Ellie look for her. Bobby's will is read, leaving Cliff hoping to take advantage of what it says. Mandy wants J.R. to divorce Sue Ellen.
Cobra attacks crucial oil derricks, pipelines, and tankers, seeking to control the world's fuel supplies. But G.I. Joe use Cobra Commander's remote-control attacks to pinpoint his location.
Jane accidentally crashes Mr. Spacely's car that she borrowed, which causes him to merrily blame George, making him a virtual slave and groveler, until it was discovered that the brakes are jammed by a piece of fine space china from one of Spacely's space china collections. This absolves the Jetsons, and then the tables are turned and a furious and humiliated Spacely becomes the reluctant servant of George.
Alex implements a fail-proof, and extremely unromantic, method of meeting the girl of his dreams: He picks her from pictures in the freshman directory. His selection, Tricia, seems to fit his requirements perfectly, but his plan goes off-track when he is strongly attracted to her roommate, Ellen. Ellen and Alex dislike each other instantly, and though he can't figure out why, he finds himself thinking about her constantly.
Bates gets to know an art teacher; Coffey, Renko, LaRue and Washington bet on who can drive to work the fastest; Renko has to bust his favorite singer for cocaine possession; Goldblume is taken hostage by a militant on the edge of sanity bombarding his neighbors with a high decibel barrage of words.
After the sad passing away of Coach, Sam hires a new bartender in Woody Boyd, Coach's pen pal who has moved to Boston. Frasier arrives back from Europe with the news that Diane left him at the altar for six months of decadent living across Europe and is now seeking renewal in a Boston monastery.
Tired of constantly being bested by the Thundercats, the Mutants have Mumm-Ra raise their spaceship and salvage their vehicles.
Cliff and Clair are overjoyed with the arrivial of the new school year, as their children are finally out of the house.
The Decepticons' tampering on the island creates openings to other times, allowing all sorts of things from various times to arrive in the present. The Autobots race to reverse this before it's too late and to stop the Decepticon plot. But in the end, their best hope may be the Dinobots.
Magnum and Higgins are on their way to London to attend to urgent business for Robin Masters and find themselves stirring up the past.
Thomas helps Penelope to continue to investigate Geoffrey's death and learns of Higgins' reluctance to visit his father.
An elite special missions force fights against the terrorist forces of Cobra.
Challenge of the GoBots is an American animated series produced by Hanna-Barbera, based on the Gobots toy-line released from Tonka. The show originally debuted in animated form as a five-part miniseries, which aired in syndication from October 29 - November 2, 1984. A regular series followed the next year, premiering on September 16, 1985 as part of the new weekday/weekend morning programming block called The Funtastic World of Hanna-Barbera. The series was later rerun on the USA Cartoon Express.
Everyone tries to adjust to Selma's death as Harry interviews possible replacements, but Bull goes on a drinking binge instead.
Colt is sent after a jumper and then discovers his quarry has entered an Elvis Presley impersonator contest and merged with the crowd.
McCall comes to the aid of a housekeeper when kidnappers grab her son by mistake.
When Cobra uses a tractor beam to steal a spy satellite recently placed in space by the Joes, Breaker forces the satellite to crash in the jungles of Africa, but a tribe of hominid Primords complicates Joe and Cobra's efforts to recover the technology.