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The Butt Ugly Martians arrive on Earth. The characters are introduced as the episode moves on.

A Martian that was a conquerer in the past is sent to help the Martians destroy Earth.

A fire breathing, shapeshifting Martian finds out about Dr. Damage's newest invention, ""the deatomizer"".

The Martians used to be record holders at a game called ""Toget"", a game in which one team tries to send a meteor to a planet and the other team tries to prevent the meteor from destroying the planet.

Mike is accidentaly sent to Bog with a few other things. It's up to the B.U.M. team to save him.

""Koofoos are ruthless"" according to the Martians. They tell the kids that when they find out a Koofoo ship is found in the Sahara.

Muldoon sees Dog in the streets while he is filming an essay for Mike. When the Martians find out, they hi-jack a top-secret government facility owned by a mad scientist named, Dr. Brady Hacksaw.

A female Butt Ugly Martian named Shaboom-Shaboom arrives, saying she ran away from Bog Star. Dog is suspicious of her strange actions.

Dr. Damage shows Emperor Bog that the Martians are goofing off by showing a clip of Angela kissing Do-Wah-Diddy.

The Martians are filming a fake progress report using a hologram of a made-up alien named a ""Karsch"".

2-T-Fru-T has come up with a way to let the Martains walk around invisible. Mike borrows the device and is surprised to find out it works differently on humans - and accidentally turns Angela into a puddle.

The Butt Uglies and Cedric make a music video for a contest. The Martians than find out Stoat Muldoon is fired.

2T-Fru-T decides to make BKM Ultra for them, but when they try to transform, it doesn't work, and the only problem is that the regular BKM doesn't work either.

Now with a lot of evil aliens on earth, and the Uglies are stuck on Bog Star, with no BKM, Earth is in grave danger.

While Emperor Bog is trying to make an alliance with the King and Queen of Trakton, Dr. Damage is sent to look after the young, Prince Netzor.

Dr. Damage sends Shaboom and Emperor Bog into a Red Hole (red holes are worse than black holes) so than he can become Emperor.

It's galactic hunting season and a mythical, Snarlick has been spotted heading to Earth by the Karsch twins.

The Martians decide to leave Earth, believing they are why Earth is in danger so much.

Emperor Bog wants to hire a bounty hunter, Chitzok to invade Earth. Suddenly, Chitzok falls in love with Angela.

Dr. Damage creates a program that will brainwash the Butt Ugly Martians, but it accidentally gets sent to Stoat Muldoon.

B-Bop and 2T-Fru-T get in to a fight and B-Bop leaves the Butt Ugly Martians.

The Uglies win a contest that wins them a trip to Britain to play in a concert. Dr. Damage tricks them and replaces the announcer with a robot and plans to put brain wash into the music.

Emperor Bog gets a game where he can challenge the Doom Race 2000 - which Mike is playing! At first only Emperor Bog knew that the game was for real!

Dr. Damage proves once and for all that the Uglies aren't conquering Earth but goofing off. He shows Emperor Bog a tape of them making a video showing that they are friendly.