Steven 10 Alien Force

Steven 10 Alien Force is the second iteration of the Steven 10 franchise and the sequel of the original Steven 10 series. It was created by Eric Nagler and produced by Gumball Network Studios.

The storyline is notable for having matured the characters and taking a darker tone, with increased narrative complexity and frequency of character deaths. Despite initially mixed reactions to the change from fans, Alien Force garnered positive reviews and successful ratings, leading to further continuation of the franchise and thus the production of a sequel series called Steven 10 Ultimate Alien.

Plot
Five years after the original series, 15-year old Steven Tennyson has returned to a normal, everyday life. His adventures all done, Steven has taken off the Omnitrix and has grown from a young boy into a confident teenager; however, the mysterious disappearance of Grandpa Paul makes Steven put the Omnitrix back on, as well as forcing him, his cousin Salli, and his old enemy Dave to search and locate Grandpa Paul. At the same time, they must enlist the help of the Plumbers' kids (children or grandchildren of retired Plumbers which are commonly half human and half alien) and repel attacks from a new enemy, the Highbreed Magiblot.

In the third and final season, Wilgex returns as the main antagonist, forcing Steven, Salli and Dave to tackle bigger problems and find out more secrets about the Omnitrix. In the series finale, The Final Battle, Steven faces Wilgex again in their final battle, destroying the Omnitrix in the process. At the end, Steven is now armed with a new Omnitrix called the Ultimatrix.

Characters
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Main Characters

 * Steven Tennyson
 * Salli Tennyson
 * Dave Levin

Secondary Characters

 * Paul Tennyson
 * Alexandra (Steven's Girlfriend)
 * Ship
 * Diesel Gavin (Professor)
 * Esmoth
 * Dark Shroom Bro
 * Mr. Tennyson
 * Mrs. Tennyson
 * Eric Tennyson
 * Catherine Tennyson
 * Joey Tennyson
 * Verdona
 * Mr. Levin
 * Mrs. Levin
 * Aaron Petez
 * Kyle
 * Tekrax Shard
 * Eric Albright
 * Manny Armstrong
 * Helen Wheels
 * Pierce Wheels
 * Cooper Daniels
 * Reinrassig III Magiblot
 * Tyler

Others

 * Magister LodeSpace
 * Sheriff Mason
 * Officer Wells
 * Lucy
 * Trina
 * Carol Smith
 * Baz-l
 * Edna
 * Hugo
 * General Groff
 * Squire
 * Dragon
 * Serena
 * Bellicus
 * Frolic
 * Magister Prior Gilhil
 * Ice Cube's Offspring
 * Lu
 * Tiny
 * Tiny's Father
 * Tiny's Mother
 * Jeff
 * Highbreed Councilors
 * Myaxx
 * Ultimos
 * Tini
 * Synaptak
 * Lukik
 * Mouldywarp
 * Doug
 * Orb
 * Decka
 * Probity
 * Judge Domstol
 * Bailiff
 * Zaw-Veenull
 * Cicely
 * Tiffin
 * Sugilite
 * Elena Validus
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Main Villains

 * Highbreed Magiblot
 * Highbreed Magiblot Commander
 * DNAlien Magiblots
 * Wilgex
 * Psyphon

Secondary Villains

 * Algito
 * Shadow Mario
 * Shadow Luigi
 * Darkstar
 * Hex
 * Charmcaster
 * Stone Creatures
 * Zs'Skayr
 * Vreedle Brothers
 * Octagon Vreedle
 * Rhomboid Vreedle

Forever Knights

 * Patrick
 * Connor
 * Joseph Chadwick
 * Sir Morton

Incursean Empire

 * Milleous
 * Attea
 * Sangfroid
 * Raff
 * SevenSeven

Others

 * D'Void
 * Simian
 * Jarett
 * Sunder
 * Ssserpent
 * Kraab
 * Ragnarok
 * Mayor Coleman
 * Blue Leader
 * Red Leader
 * Victor Validus
 * Prisoner
 * Techadon Robots
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Original Aliens

 * Billien NEX (debut)
 * Ice Cube (debut)
 * Sciss-Storm (debut)
 * ChromaMetal (debut)
 * Puffball Puffball (debut)
 * SlimeGuy (debut)
 * Stegosaurus (debut)
 * Yin-Yang (debut)
 * SpiderCarrot (debut)
 * Firey Underwear (debut)

Additional Aliens

 * Brickbolt
 * Garnethead
 * Ghostface
 * Firey-Blast (unused)
 * Gamestar (debut)
 * Nanofly  (debut)
 * Snow Rath (debut)
 * Murk Spitler (debut)
 * Big Guy
 * Creeper Doggy (unused)

Ultimate Forms

 * Stegosaurus (debut)
 * Firey Underwear (debut)
 * }

Video Games

 * Steven 10 Alien Force (Video Game)
 * Steven 10 Alien Force (DVD Game)
 * Steven 10 Alien Force: Wilgex Attacks
 * Steven 10 Alien Force: The Rise of Hex

Movies

 * Steven 10 Alien Swarm

Opening
The opening showed Steven's ten main aliens in Alien Force. Only the silhouette of Billien NEX was seen in the opening at the first season, while his full image was later seen at the start of season two and onward. It somewhat sounds similar to the first verse of the original.

Trivia

 * It was called Syeven 10 Hero Generation during the pre-production stage.
 * The original Alien Force logo had the original series' Steven 10 logo rather than the current one.
 * Season 1 takes place over a period of two months.
 * Rigge Diamond and Victor Tartavosky were developing a new show for Gumball Network. The network asked Rigge if he would do a revamp of Steven 10. After daily discussions with Dwayne, Glen asked him to be part of the project. The network had a lot of creative ideas and Rigge and Victor went through them. The network wanted to age Steven up and have Dave as part of the team. That wasn't set but Glen and Dwayne both liked the idea. They mixed and matched between what the network thought up and what they wanted to do.
 * Rigge described his vision for the show as "three kids wandering around finding aliens". He likened the tone of Alien Force to different movies and series such as Breaking Away (which he was a fan of), Close Encounters of the Third Kind and Stranger Things. While Rigge intended the show to be more like a mystery show, the network wanted it to be "poppier".
 * It took about nine months to complete one episode of Alien Force.
 * Writing for all 20 episodes of Season 3 was completed sometime before March 30, 2014.
 * The season ended up being very different from what the crew hoped to do, but they came up with something else they liked.
 * The crew was told to keep a lot of the silhouettes for the Omnitrix aliens very humanoid and more of a standard strong superhero build. A lot of consideration was taken into fitting them onto a blister card and onto the toy shelf.
 * On Dumbal+ and PlayStation Network, Season 3 was cut to make Season 4 (Primus is the first episode of season four).
 * On iTunes, the icons of each seasons have the following aliens: Season 1 - ChromaMetal, Firey Underwear, and Puffball Puffball, Season 2 - Spidercarrot, Season 3 - Stegosaurus, and Season 4 - Ice Cube.
 * On DVD, the cover of each volumes have the following aliens and villains: Vol 1: Stegosaurus, Vol 2: Spidercarrot, Vol 3: Billien NEX, Vol 4: Ice Cube, Vol 5: Firey Underwear, Vol 6: Yin-Yang, Vol 7: Steven Tennyson, Vol 8: Wilgex, Vol 9: The Team.
 * The theme song is an orchestral version of the first and second verses of the original series' intro.