Five incredible young people with super powers!
Battle of the Planets is a late 70s/early 80s reworking of Science Ninja Team Gatchaman, and was one of my earliest introductions to anime and sci-fi cartoons. With classic in its camp, we join the adventures of Mark, Jason, Princess, Key-op, Tiny and the incredible 7-Zark-7 as they defend space from things beyond space.
It's one of the first US adaptations of a Japanese anime series that I am aware of (Robotech is my favorite in this genre). Sandy Frank Productions draws on all the popular sci-fi memes of the day and brutally rips off R2-D2 to create a fast, fun and confusing series. Five young and highly-trained agents who dress like birds and fly like gravity doesn't exist gather to defend the Earth from Zoltar, the Luminious One, and planet Spectra.
Science Ninja Team Gatchaman has been recut several times over the years, not just into BotP but G-Force and the Eagle Riders as well. 7-Zark-7 and 1-Rover-1 make Battle of the Planets my favorite.