Ep 1. Roswell That Ends Well

In the fourth season premiere episode of Futurama, entitled "Roswell That Ends Well," the crew of Planet Express accidentally travels back in time to 1947 Roswell, New Mexico, and becomes embroiled in one of the most infamous and mysterious events in American history. After crash-landing on Earth in the aftermath of a catastrophic explosion, Fry, Bender, and the rest of the gang find themselves in the heart of the Roswell incident, where they are mistaken for extraterrestrial beings and taken into custody by the US government.

As they attempt to figure out how to return to their own time and place, the Planet Express team must navigate the hazards of life in the 1940s, including rampant discrimination, gender inequality, and rampant conspiracy theories. Along the way, they encounter a colorful cast of characters, including brave pilots, corrupt government agents, and eccentric scientists, all of whom are convinced that the fate of the world rests on their shoulders.

Throughout the episode, the crew finds themselves alternately horrified and amused by the strange customs and practices of 1940s America, from segregated drinking fountains to rampant McCarthyism. Meanwhile, Fry (voiced by Billy West) becomes increasingly enamored of the era and begins to fall for his own grandmother, while Bender (voiced by John DiMaggio) uses his advanced technology to cheat at gambling and win big. Leela (voiced by Katey Sagal), the only member of the group who seems to have any sense of urgency about returning to their own time, struggles to keep the others in line and prevent them from causing irreparable damage to the fabric of history.

As the crew becomes more deeply entangled in the Roswell incident, they begin to realize that the situation is far more complex than they ever imagined. With the help of a sympathetic scientist named Professor Farnsworth (also voiced by Billy West), they uncover a web of government cover-ups and hidden agendas that threatens to plunge the world into chaos.

In the end, the Planet Express team manages to escape the clutches of their captors and return safely to their own time. However, they are forever changed by their experiences in the 1940s, and the strange and wonderful memories of their time in Roswell continue to haunt them. "Roswell That Ends Well" is a fascinating exploration of the enduring appeal of science fiction, as well as a poignant meditation on the mysteries of time and space. Its blend of humor, drama, and adventure make it a must-watch for fans of the series, as well as anyone who loves a good story.