Tropes in this episode:
- Accidental Pervert: While trying to get away from the Gratan on his boat, Nadia accidentally falls on top of Jean and his lap. Judging from the grin on his face, heh, the boy doesn't seem to mind at all.
- Captain Crash: Jean proves the crash of his comeptition aircraft in the Pilot wasn't a one-off event.
- Crazy-Prepared: Jean designed his 8th aircraft to survive a watery landing and to stay afloat until help might arrive. Unfortunately, he didn't take into account hostile weather...
- Deliberate Values Dissonance: Jean's Aunt makes very snide and racist remarks about Nadia, to which Jean has to chase down Nadia and offer her shelter at his own house in Le Havre. Considering this is the late 1800's, colonialism was accepted in Europe. So, Auntie's reaction towards Nadia is not as surprising.
- Evil Detecting Lion Cub: It's King, rather than the Blue Water, who's the first one to realize the Grandis Gang are pursuing them on the Seine.
- Police Are Useless: Downplayed, but still implied by the Gratan crashing in the middle of Paris and the French constabulary somehow being unable to detain them or impound the tank in-between the first and second episodes. Then again, if Hanson got it back into action quickly, and with the tank's nautical mode, the Parisian cops may not have had a chance to get the Gang in time before they hit the Seine in pursuit of Nadia.
- Rule of Three: See Running Gag.
- Running Gag: Nadia becomes impressed and awed by one of Jean's inventions...only to watch it break and fail and expresses her disappointment. Rinse and repeat.Nadia: How come none of your inventions work very well? You're not much of a genius.
- Seeker Archetype: After the groundwork in the Pilot about the ambiguity of Nadia's ethnicity, this episode sets up the mystery of her origins and homeland and Jean's pledge to help her learn the truth. This thus becomes the first of the series' Myth Arcs.
- Unexplained Recovery: Hanson manages to get the Gratan back in the field pretty quickly despite the damage it sustained from the crash mere hours earlier at the end of the Pilot.
- Villain Respect: The Grandis Gang very grudgingly comes to admire Jean's engineering skills and his and Nadia's ingenuity at eluding them.
