Made to celebrate Tatsunoko's 55th anniversary, this movie is a team up of the company's finest, most notable heroes.

Set in an alternate Shibuya, Ken The Eagle, a.k.a. Gatchaman, is facing his greatest theat. After failing to stop his former mentor, Dr. Nambu, he is left for dead as Dr. Nambu uses a weapon named Nexus to eliminate the Galactor. Six years later, an alternate dimension version of Gatchaman arrives with allies Tekkaman, Hurricane Polymer, Casshan, and Emi arrive to track down the Singularity, only to end up battling Dr. Nambu, who in this world, has become a corrupt leader using the Singularity as Nexus, despite the danger it poses to, being joined by Joe The Condor, this world's only surviving member of the original Science Ninja Team.

This is a neat anime movie. Crossing over four of Tatsunoko's legendary heroes in one CGI movie, it is full of great action and has a good story with a great voice cast. However, it is on the short end (being only an hour and a half).