"Cho Supercar Gattiger" is a 1977 anime series that blends elements of science fiction, action, and mecha genres. The story is set in a futuristic world where humanity faces the threat of an alien invasion. The narrative centers around the Gattiger team, a group of skilled pilots who operate advanced transforming vehicles known as the Gattiger machines. These vehicles are capable of combining into a powerful mecha called Gattiger-1, which serves as humanity's primary defense against the alien forces.

The alien invaders, led by the enigmatic Commander Zuhl, seek to conquer Earth and exploit its resources. The Gattiger team, composed of five main members, is tasked with thwarting these efforts. Each member pilots a unique vehicle: the Gattiger Jet, Gattiger Tank, Gattiger Submarine, Gattiger Heli, and Gattiger Car. These vehicles can transform and combine into Gattiger-1, a formidable mecha capable of engaging the alien forces in battle.

The series follows the Gattiger team as they confront various alien threats, often involving large-scale battles and strategic maneuvers. The team's missions are driven by the need to protect Earth and its inhabitants, with each episode typically featuring a new challenge or enemy. The narrative emphasizes teamwork, courage, and the importance of defending one's home against overwhelming odds.

Character development is interwoven with the action, as the Gattiger team members face personal struggles and grow stronger through their experiences. The series also explores themes of unity and resilience, highlighting the collective effort required to overcome the alien menace. The dynamic between the team members and their interactions with supporting characters add depth to the story, providing a balance between intense action and emotional moments.

"Cho Supercar Gattiger" is notable for its innovative use of combining mecha, a concept that would later become a staple in the mecha genre. The series combines high-stakes battles with a straightforward, engaging narrative, making it a classic example of 1970s anime. Its focus on teamwork, transformation, and the fight against extraterrestrial threats has cemented its place in the history of mecha anime.