The Earth has been invaded by an alien race known as the Brainlings. As part of their invasion, the Brainlings have abducted the vast majority of the adult humans on Earth, leaving the population mostly children.
Well, then it's up to the kids to fight back. Under the leadership of a young boy named Nate, the kids have taken refuge in a department store, and have formed a team intent on fighting the Brainlings off the planet and rescueing the adults, most chiefly their parents.
The series ran from August 3rd, 2013, to April 30th, 2015.
Oh No! It's An Alien Invasion contains examples of:
- Alien Invasion: The Brainlings have invaded Earth and abducted most of the human adults.
- Bland-Name Product: The kids' home base is a store called Wal-Ma- (ahem) Swell-Mart.
- The Caligula: Emperor Brainlius III is a big fat childish guy.
- Cheek Copy: In one episode the kids attempt to set a new world record for doing this, only to be beaten by the aliens who have a photocopier that produces its own paper.
- Childish Tooth Gap: Lily has a gap in her upper teeth.
- Christmas Episode: "Ho Oh No".
- Fun with Acronyms: The kids' resistance movement is known as S.W.E.E.T.: Super Wicked Extreme Emergency Team.
- Gratuitous Ninja: Jumbo Ninja, a member of the team.
- Growling Gut: Scoops' does this in "Brainlings On Parade", "The Future Is Now", and "Lost In The Hood".
- Girlish Pigtails: Lily has them.
- Kid Hero: A whole team of them fighting against the Brainlings.
- The Leader: Nate fills this role in the team.
- Little Miss Badass: The female members of S.W.E.E.T., naturally.
- The Mall: The Swell-Mart, which S.W.E.E.T. uses as their base of operations.
- Mirror Universe: Louis gets sent to one in one episode. In it, S.W.E.E.T. are the villains who used the Brainlings' technology to abduct all the Earth's parents, while the Brainlings are hiding in Swell-Mart, trying to restore order to the world.
- Monochromatic Eyes: The standard Brainling Mooks have solid bright green eyes.
- Potty Emergency: In "The Royal Flush", all of S.W.E.E.T. is forced to hold it in because Emperor Brainlius III's new hobby of flushing things down the toilet has clogged the sewers.
- Rapid Aging: In "The Stache'", Shakes is blasted with a ray that Briiian developed to use on Nate. It causes him to rapidly get older and older. He's an old man by the time S.W.E.E.T. obtains the ray to turn him back to normal.
- The Silent Bob: Jumbo Ninja speaks in hand action, not words.