"The Nine Lives of Fritz the Cat" is an animated film that follows Fritz, a disillusioned cat living a mundane life with his wife and child. To escape his dreary reality, Fritz smokes marijuana and embarks on a series of drug-induced fantasies about his eight other lives.

These fantastical journeys take him through various time periods and scenarios, including:

 A prehistoric caveman: Experiencing the challenges of early human existence.

 A Roman soldier: Engaging in battles and encountering the decadence of Roman society.

 A medieval knight: Embarking on a quest for the Holy Grail.

 A Renaissance artist: Becoming entangled in the intrigues of the Italian Renaissance.

A Victorian gentleman: Navigating the social constraints of Victorian England.

 A World War I soldier: Experiencing the horrors of trench warfare.

 A 1960s hippie: Indulging in the counterculture movement.

 A futuristic astronaut: Exploring the cosmos and encountering alien life.

Through these diverse experiences, Fritz grapples with themes of love, loss, war, religion, and the meaning of life. The film is known for its adult content, social satire, and psychedelic animation style.

Disclaimer: This is a simplified summary. "The Nine Lives of Fritz the Cat" is a complex and often controversial film with adult themes and graphic content.