While it certainly is a questionable feature in the episode, some fans were quick to try and remedy the plot hole.
Replying to the user’s comments, one fan suggested: “He could’ve taken dramamine before boarding. It’s one of those suspended belief scenarios.”
While a second weighed in: “Well it could be either something that McGee has eventually overcome or maybe the water just wasn’t that rough.”
So had McGee somehow overcome his ailment or was it indeed a plot hole in the character’s backstory?
NCIS season 18 is predicted to air on CBS in late 2020.