10 Deadliest Accidents In Star Trek

6. Immortality Is Not A Gas

Well, you know what they say: it's all hurt until someone gets fun and games. On the way to one of the deadliest accidents in Federation history, the crew of the Enterprise-D was rudely interrupted by the "Q entity". As per tradition, he just wanted to play for a bit with Commander Riker and co. on a faraway planetoid, and to grant Riker the power of the Continuum.

Back then, Picard was a little more diplomatic about the "bullsh*t," but still determined to get to Quadra Sigma III. Parking Q in his own 'penalty box' for a minute, Quadra Sigma III was a mining colony with 504 inhabitants. In 2364, methane-like gas leaked from an underground source on the planet, causing an explosion that laid waste to operations on the surface.

When the Enterprise finally did arrive, delayed or not by the galaxy's most inaccurate historical reenactment society, there were only eight survivors. Riker, now a Q, or near as damn it, was prevented by a promise from restoring any of the 496 to life. He quickly reneged on said promise when he made Wesley a grown-up and provided Klingon sexy time for Worf (amongst other offers to the crew). Priorities, Will! Priorities!