El protagonista de la serie es Tommy Cadle, un chico de 12 años adicto a los dulces y los videojuegos que disfruta de una vida de lo más agradable y normal, aunque su casa no es un hogar habitual, sino un faro situado en un tranquilo pueblo costero. Todo va bien para Tommy hasta que un día irrumpe en su vida una curiosa pandilla de alienígenas que ha estrellado su nave espacial contra su casa. Además, están tan emocionados con todo lo que ven a su alrededor después de haberse pasado 300 años en su aburrido planeta del espacio exterior que rápidamente deciden quedarse en la Tierra.
Maxcotas (Mascotas Papanatas) (Temporada 1)
The Boy with Six Legs (Episodio 1)
Guionista: Bryan Thompson
Fecha de emisión: 2005-01-23
Duración: 30 min
Sinopsis: The aliens accidently lock Tommy out of the lighthouse thinking that Tommy is a misleaded crab.
Evil Emperor (Episodio 2)
Guionista: Tom Sheppard
Fecha de emisión: 2005-01-30
Duración: 30 min
Sinopsis: Melba Manners thinks Tommy is not mature enough so she leaves Tommy with the new, preschool neighbor.
The Amazing Atomic Tommy (Episodio 3)
Guionista: Tom Mason
Fecha de emisión: 2005-02-06
Duración: 30 min
Sinopsis: The aliens think Tommy is a superhero. The aliens think that Tommy has never told anyone about his secret identity.
Crater of Doom (Episodio 4)
Guionista: Tom Mason
Fecha de emisión: 2005-02-13
Duración: 30 min
Sinopsis: Tommy has always had embarassing pictures for School Picture Day. Tommy must make this picture the best of his life, until a pimple appears on his head the next day.
Attack of the 50 Foot Boy (Episodio 5)
Guionista: Kat Likkel
Fecha de emisión: 2005-02-20
Duración: 30 min
Sinopsis: Tommy and the aliens go to the amusement park. Tommy cannot go on the new ride because he is not tall enough, it's up to the aliens to help.
It Came from the Closet (Episodio 6)
Guionista: Ray DeLaurentis
Fecha de emisión: 2005-02-26
Duración: 30 min
Sinopsis: Tommy has house chores to do and leaves the aliens to do vacuuming. The aliens suddenly freak out that the vacuum is a monster.
The Bride of Gumpers (Episodio 7)
Guionista: Tom Mason
Fecha de emisión: 2005-02-27
Duración: 30 min
Sinopsis: Before Gumpers had came to Earth, he had a pre-selected wife. Can the gang help Gumpers turn into the husband of this young lady?
The Thing on the Corner (Episodio 8)
Guionista: Tom Mason
Fecha de emisión: 2005-03-05
Duración: 30 min
Sinopsis: Dinko turns obsessed with Tommy's mailbox. When the mailman comes the next day, Dinko takes the mail and hides it somewhere, thinking it's a trick.
I Was a Teenage Bearded Boy (Episodio 9)
Guionista: Tom Mason
Fecha de emisión: 2005-03-06
Duración: 30 min
Sinopsis: Tommy gets what he's always wanted, facial hair! In this case, in tends to be a beard. Tommy is now not just a kid anymore, he's mature enough to be an adult with that beard. Tommy becomes popular and everyone notices him. He than goes to parties, dances, and other great stuff without his friends. But, one thing he's forgotten about his best friends, The Aliens.
Escape from Detention X (Episodio 10)
Guionista: Tom Mason
Fecha de emisión: 2005-03-12
Duración: 30 min
Sinopsis: Tommy gets in trouble in school and his snobby teacher gives him a detention. The Aliens begin to freak out when they find out that he must stay after school doing boring things such as: doing homework, erasing the chalkboard and other humiliating things.
Box of Doom (Episodio 11)
Guionista: Dan Zettel
Fecha de emisión: 2005-03-13
Duración: 30 min
Sinopsis: The aliens find a locked box in Tommy's basement. The aliens say there's something awful about the box but Tommy doesn't believe them.
Assault of a Rodent (Episodio 12)
Guionista: Ray DeLaurentis
Fecha de emisión: 2005-03-19
Duración: 30 min
Sinopsis: A stink house mouse invades Tommy's house, eating all of the cheese. Gumpers must fight the mouse to get back his beloved desire, cheese.
They Came from Outer Space (Episodio 13)
Guionista: Tom Mason
Fecha de emisión: 2005-05-12
Duración: 30 min
Sinopsis: Swanky's parents are coming to DeSpray Bay. Swanky needs to show his parents that he is a grown alien.
Tentacles of Terror (Episodio 14)
Guionista: Tom Mason
Fecha de emisión: 2005-05-19
Duración: 30 min
Sinopsis: Tommy gets the oppertunity to bring home the class pet, an octopus. Gumpers has aten the other class pets that Tommy has brought home before, but not this time.
The Great Movie Massacre (Episodio 15)
Guionista: Tom Mason
Fecha de emisión: 2005-05-23
Duración: 30 min
Sinopsis: Tommy tries to make a movie about his home, the lighthouse. Tommy hopes that the movie will be a success.
The Day That Wouldn't End (Episodio 16)
Guionista: Tom Mason
Fecha de emisión: 2005-05-24
Duración: 30 min
Sinopsis: Tommy has a bad day and the aliens make an invention to stop bad days by repeating the day over.
It Comes When You Sleep (Episodio 17)
Guionista: Tom Mason
Fecha de emisión: 2005-05-25
Duración: 30 min
Attack of the Werescruffy (Episodio 18)
Guionista: Ralph Soll
Fecha de emisión: 2005-05-26
Duración: 30 min
Sounds of Doom (Episodio 19)
Guionista: Don Gillies
Duración: 30 min
Sinopsis: Tommy must take accordion lessons because his mom wants him involved in musical themes.
Darkness (Episodio 20)
Guionista: Don Gillies
Duración: 30 min
Sinopsis: Tommy is afraid of the dark and Dinko doesn't want Tommy to be afraid of the dark so Dinko helps Tommy face his fears.
She Comes for Your Heart (Episodio 21)
Guionista: Tom Mason
Duración: 30 min
Sinopsis: Dinko finds out that Tommy's friend, Gabby is going to give her his heart.
Beast Who Stole My Heart (Episodio 22)
Guionista: Don Gillies
Duración: 30 min
Sinopsis: Granville's stuffed bird is a huge distraction to Tommy and Flip when Flip falls in love with Granville's fake bird.
Night of the Walking Cannonball (Episodio 23)
Guionista: Tom Mason
Duración: 30 min
Sinopsis: A movie celebrity pops into DeSpray Bay and Tommy and the aliens go to see him.
It Landed on the Porch (Episodio 24)
Guionista: Ray DeLaurentis
Duración: 30 min
Sinopsis: It's a battle between Tommy and Melba Manners again - whoever can make the best newspaper will win the competition.
Bay of the Triffids (Episodio 25)
Guionista: Tom Mason
Duración: 30 min
Sinopsis: Dinko tries helping Tommy take care of his mother's plant, until Dinko accidently turns the plant into an alien-like monster.
Doctor of Doom (Episodio 26)
Guionista: Ralph Soll
Duración: 30 min
Sinopsis: Tommy's mother tells Tommy that he needs to get his flu shot today. Tommy doesn't want to go to the doctor's so the aliens come up with an idea.
Invasion of the Balloon People (Episodio 27)
Guionista: Tom Mason
Duración: 30 min
Sinopsis: It's time for the annual hot air balloon show, and the aliens believe they are visitors from another planet.
The Little Monster Ball (Episodio 28)
Guionista: Tom Mason
Duración: 30 min
Sinopsis: Tommy gets invited to Granville's party, and the aliens come to save him from impending doom
The Land That Size Forgot (Episodio 29)
Guionista: Tom Mason
Duración: 30 min
The Day the Food Expired (Episodio 30)
Guionista: Meg McLaughlin
Duración: 30 min
The Evil that Thumbs Do (Episodio 31)
Guionista: Ray DeLaurentis
Duración: 30 min
Terror TV (Episodio 32)
Guionista: Ray DeLaurentis
Duración: 30 min
Sinopsis: Tommy and his alien friends go crazy when Tommy's TV suddenly breaks. They go to Captain Spangley's store, but it is closed. All Tommy wants to do is watch Taffy Patrol.
Bad Blood from Beyond (Episodio 33)
Guionista: Ken Pontac
Duración: 30 min
The Day Time Stood Still (Episodio 34)
Guionista: Ray DeLaurentis
Duración: 30 min
Horror Scope (Episodio 35)
Guionista: Ken Pontac
Duración: 30 min
Scare Affair (Episodio 36)
Guionista: Tom Mason
Duración: 30 min
Stage Fright (Episodio 37)
Guionista: Scott D. Peterson
Duración: 30 min
Night of the Cat People (Episodio 38)
Guionista: Ray DeLaurentis
Duración: 30 min
Return of the Ghastly Gobbler (Episodio 39)
Guionista: Tom Mason
Duración: 30 min
Shipping and Handling Not Included (Episodio 40)
Guionista: Michael J. Prescott
Duración: 30 min
The Boy Who Became Something (Episodio 41)
Guionista: Kevin Donahue
Duración: 30 min
Unleashed Beast of Fury (Episodio 42)
Guionista: Scott D. Peterson
Duración: 30 min
The Creature of the Spray Bay (Episodio 43)
Guionista: Kat Likkel
Duración: 30 min
The Alien Who Sold the World (Episodio 44)
Guionista: Don Gillies
Duración: 30 min
Beware the Decider Maker (Episodio 45)
Guionista: Tom Mason
Duración: 30 min
I Voted for an Alien (Episodio 46)
Guionista: Tom Mason
Duración: 30 min
A Pirate and His Dog (Episodio 47)
Guionista: Tom Mason
Duración: 30 min
They Took Tommy's Brain (Episodio 48)
Guionista: Tom Mason
Duración: 30 min
The Boy Who Ate Too Much Taffy (Episodio 49)
Guionista: Ray DeLaurentis
Duración: 30 min
The Floating Head (Episodio 50)
Guionista: Tom Mason
Duración: 30 min
The Time That Time Ended (Episodio 51)
Guionista: Tom Mason
Duración: 30 min
The Day of Judgement (Episodio 52)
Guionista: Ray DeLaurentis
Duración: 30 min
Temporadas
Episodios 52
Episodios 52