A spear-carrying species who revere crystals and whose anger at a mistaken diplomatic gift from the USS Cerritos led to an invasion of the ship and a trial by combat.
The Gelrakians are a warlike humanoid people whose culture centres on crystals, which decorate their weapons, ships and clothing. They appear in the Lower Decks episode Temporal Edict.
In 2380 an away team under Commander Ransom arrives to present an honour crystal, but the overworked crew has packed the wrong box. The team hands over a wooden totem instead, and wood is the symbol of the Gelrakians' enemies. The delegation is seized, and Gelrakian raiders board the Cerritos, where an exhausted crew can barely resist.
Ransom wins his team's freedom by defeating the giant champion Vindor in single combat, having stabbed Beckett Mariner in the foot so that he could fight in her place. Captain Freeman drops her strict schedule, and the rested crew clears the ship.