The episode starts off with a glimpse of a wanted poster of Jack, being the most wanted man in the future, who happens to be eating noodles in a tavern full of bounty hunters. After the bounty hunters confirm Jack's identity from the poster, they begin to attack him. Fortunately for Jack, the Scotsman arrives, blowing up the tavern with the bounty hunters still inside. Once outside, the Scotsman explains he tracked down Jack to ask him for help. A clan of Celtic demons had kidnapped his beloved wife, and the Scotsman is forbidden by ancient tradition to be aided by his clan members. The only loophole allows the Scotsman to seek aid from a stranger, and, in his words, Jack is "the strangest man [he knows]". Jack agrees to help, but first he has to gain the approval of the Scotsman's clan. The two friends travel to the Highlands, where Jack is introduced to the Scotsman's clan, including the clan's Druid. After passing a test of strength (through unconventional means), Jack and the Scotsman are allowed to go rescue his wife.
After sneaking into the Castle of Boon, where the Celtic Demons reside, the two discover that the demons want to eat the The Scotsman's Wife by cooking her in a soup. They finally reach the tower where the Scotsman's wife is being kept, only for Jack to learn that she is even more abrasive than her husband; Nevertheless, this seems to please the Scotman, who smiles at her rude remarks about himself and Jack. As they try to sneak her out, the trio are cornered by the demon horde. Though the two warriors fight bravely, they are vastly outnumbered, and on the verge of defeat. However, when the head Celtic Demon refers to the Scotsman's wife as "the fat one", she grows infuriated, sending her into a frenzied rage and destroying the entire horde with her bare hands while Jack and the Scotsman stare in awe. Jack then commends her for her intense fighting skill and superhuman strength, and she politely remarks that he's not as bad as she at first thought (though he could use a bit of haggis to fatten him up). As the three begin to leave, Jack realizes that the main doorway is too small for the Scotsman's wife, indirectly implying that she is fat and forcing him to flee as she furiously chases him in another fit of rage, with the Scotsman calling after her not to squash his best friend.
- Written by
- Storyboards by
- Casting by
- Collette Sunderman
- After the scene where Jack passes the test of throwing a stone, when the Scotsman is carrying Jack on his shoulders, the Loch Ness Monster (or a descendant) is seen swimming in a nearby lake.
- This is one of the few episodes where Jack is bested in combat, as even with the help of the Scotsman, he's about to give up fighting against the Celtic Demons, likely from pure exhaustion.