Enterprise is sent to planet Ekos to investigate a disappearance of Federation historian John Gill.
Lucas becomes the target of a vengeful mountaineer after he is responsible for a young mountain boy's death.
Outlaw Al Denning and his gang are being chased by a posse, so he starts leaving behind some gold eagle coins to tempt the pursuing lawmen into a payoff.
The wagon train reaches the end of the trail. Guest star: Tom Skerritt.
