Project Blue Earth SOS is an anime series that consists of six episodes.

The series is set in an alternate version of the late 1990s/early 2000s, where the people of Earth are behind in comparison to current technologies (such as having old fashioned radios) but also have technology that is way ahead of where we are now.

The first scene in the first episode is set in 1995, where a G-Reactive fighter plane is being tested. During the test flight, a mysterious rainbow light appears behind the plane. While radar on Earth doesn't pick it up, the pilot sees it. Right before his transmission is cut off, the pilot says he sees a flying saucer.

Five years later, main characters Billy Kimura and Penny Carter meet at a train station where a new bullet train that utilizes G-Reactive is being launched. Before anyone can board the train, a rainbow light suddenly appears, hits the train, and the train disappears.

Even though the government publicly denies anything about an alien invasion, it is learned by Billy and Penny that the government had secretly been developing technology to combat the aliens over the past five years. Just as the two boys are figuring things out, the aliens invade. Billy, Penny, and their acquaintances come together to try to fight against this alien invasion.

As I watched this series, I really wasn't terribly bothered the alternate version of the 1990s/2000s or by the conflicting levels of technology. Personally, I thought this dichotomy really added an interesting feel to the series. In addition to seeing some of the older technology where you wouldn't expect it, Project Blue Earth SOS also contains cliches associated with 1950s alien invasion films.

Over the course of the first episode, there were some developments and twists I hadn't expected. These developments, along with the animation being used to convey this story, really draw the viewer into the world that the story is set in. The first episode definitely showed a lot of promise; if I ever get the chance, I would like to be able to see more of this series to see how the story progresses.

Content-wise, I didn't see anything in the visuals that would be terribly inappropriate for younger viewers. However, considering the pacing and execution of the story, very young viewers probably wouldn't have the attention span to watch this series. Personally, I would recommend Project Blue Earth SOS to anime viewers who are 12 or 13 years of age and older.

Title	Episodes	Release Year(s)	Director	Studio	N.A. Licensor
Project Blue Earth SOS	6	2006	Tensai Okamura	A.C.G.T	FUNimation Entertainment