“Dinosaurs”: The Most Traumatizing Series Finale Ever

The environmental task force’s solution to deal with the vines is to spray the planet with defoliant. The mass poisoning, however, not only kills the vines but all plant life on Pangaea.

The plan backfires — and instead of rain, the clouds bring snow, causing global cooling and the beginning of the Ice Age.

In the final scene, the family is gathered together inside their home trying to keep warm.

Realizing that the world is coming to an end, Earl apologizes to his family and admits that he shouldn’t have “taken nature for granted.”

In a touching moment, the Sinclair family accept their fate and promise to stick together (until the end).

The final line of the episode is delivered by Howard Handupme (the Walter Cronkite of Dinosaurs), eerily saying, “Good night. Good-bye.”