ENT: "Marauders" and "The Communicator"

Mauraders has the Enterprise trying to purchase deuterium from a processing facility on a desert planet. Plucky kid on desert planet inspires Anakin jokes. The miners seem scared and unable to part with their deuterium, ands insistent the Enterprise be gone within 2 days. When Archer learns that the Klingons have been putting the squeeze on the colonists, he helps them squeeze back.
In "The Communicator", Malcolm leaves his communicator behind when he, Hoshi, and Archer had gone incognito to explore a prewarp planet. When he and Archer to to retrieve it, they cause a greater cultural contamination than they had tried to prevent, and place their live in danger in the process.