When Zoey and Kiki, two irrepressible girls from another galaxy, become castaways in the quiet Australian seaside town of Lightning Point, they recruit local girl Amber to keep them undercover. But the whole town is abuzz with the sighting of alien spacecraft, and the girls soon realize that they may not be the first intergalactic visitors to Earth.
- A Form You Are Comfortable With: Pending Word Of God on this, it is their true form, so a subversion. Later played straight, when it is revealed that their true form is basically ball lightning, making them Energy Beings, or plasma beings anyway.
- Alien Among Us: The main premise of the series.
- Alpha Bitch: Madison, though there are traces of a Lovable Alpha Bitch in there.
- Beach Episode: Every single episode!
- Big Brother Bully: Brandon to Luca.
- Blonde, Brunette, Redhead: Zoey, Kiki, and Amber (even though she's more auburn).
- Chekhov's Gun: The model airplane used to record the massive crop circle that appears later in the season is hanging on the wall in episode 2.
- Exactly What It Says on the Tin: At least in the U.S.
- Graceful Loser: Madison in "Surf's Up." She takes a loss to Zoey in a surfing competition much better than her previous behavior would lead one to expect.
- Half-Human Hybrid:Brandon Benedict is revealed to be this.
- Human Aliens: Possibly like the Time Lords in some way.
- Emotionless Girl: Zoey acts like this on a regular basis. Justified, as "Feelings" gives a pretty terrifying display of what happens when she can't keep her emotions under control.
- Lethal Chef: Zoey's sauce in Crushed. Amber describes it as "Awful, bad, the worst thing I've ever tasted", promptly followed by disposing of it down the drain. At the end of the episode, Kiki and Amber refuse to accept Zoey's offer to make pancakes. In unison.
- Market-Based Title: ''Alien Surf Girls'' in the U.S.
- Mood Motif: The Guitars of Surfing and the Theremin of Sci-Fi/Outer Space. Right in the Theme Tune.
- Right Behind Me: When Amber is panicking about how more guests showed up to the party then expected and it is impossible to clean the entire house before her mother gets home, she realizes Kiki and Zoey are staring at the aforementioned parent, prompting her to deliver this trope word for word.
- Scare the Dog: Animals are shown being freaked out by alien-related things on multiple occasions.
- Shout-Out: When Madison asks what Zoey's surname is, Kiki is confused and simply repeats her friend's name again. This is a reference to a similar scene in Ocean Girl where Kal is asked for his surname and answers the same way. Apparently if you are from another planet, you don't have surnames.