 Captain Jonathan Archer ( Scott Bakula ) , Sub @-@ Commander T 'Pol ( <unk> <unk> ) , and Commander Charles " Trip " Tucker III ( Connor <unk> ) fly down to a small colony of 76 miners in order to trade for deuterium . They initially try to <unk> with Tessic ( Larry Cedar ) , the colony 's leader , but he appears reluctant to part with any of the 80 @,@ 000 liters in inventory , which is being held for ' someone else ' . After negotiations however , a deal is struck − 200 liters of deuterium for four power cells and whatever medical supplies Enterprise can spare , on the <unk> that the Enterprise crew can fix two <unk> pumps in two days . 
