A temporal causality loop (or temporal loop) is an event where time skips back to a previous point and repeats itself causing a loop of a specific time period. The USS Enterprise-D and the USS Bozeman were caught in a casualty loop in the Typhon Expanse that was reset by the destruction of both vessels from colliding with each other near a temporal anomaly. The loop was broken when the crew of the Enterprise managed to avoid the catastrophic collision. (TNG: "Cause and Effect")