After learning Q is putting mankind on trial again, Picard assembles the senior staff, and wonders if Q is actually giving him a chance to save humanity by showing him that the spatial anomaly also exists in the past. As they talk, the ship reaches the Neutral Zone, then Picard returns to the future, where Beverly's ship is also on the edge of the Neutral Zone. He convinces a reluctant Worf to accompany the group into Klingon territory, and then travels to the past, where he orders the crew into the Devron system. Finally, he returns to the present, where he is able to get Tomalak, the Romulan Commander on the other side of the border, to agree to entering the Neutral Zone together. Now heading for the anomaly in all three time periods, Picard learns that it exists in the present, and is larger in the past, but does not exist in the future. Picard orders Data to find a way to collapse the anomaly, at which point Q appears again. He takes Picard back to primordial Earth, where the anomaly fills the entire sky and a pond of amino acids is about to form the first protein. However, when these first building blocks of life fail to coalesce, Picard then realizes that his own actions somehow caused the anomaly, which then prevented the beginning of life on Earth.

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"All Good Things" won the World Science Fiction Society's Hugo Award for Best Dramatic Presentation in 1995.