Season 1 of Bertram: Old Warrior started airing regularly with its first episode on September 18th, 2015.
- Genesis - Bertram's world is rocked to the core with some devastating news.
- Adapt - Bertram arrives on the Alun Railway and befriends the mysterious Proteus who persuades him to stay.
- Clash - Bertram finds himself at loggerheads with Arwel, the mines engine and learns what it's like work in the mines.
- Fugitive - Bertram risks everything to help an engine on the run from scrap dealers.
- Secret - Shy Hywel has a dark secret. As the truth begins to spread, Bertram begins to lose of control of the situation.
- Scrap - Bertram, Proteus and Hywel must fight for survival as they try to escape Albert Woodham's clutches.
- Reunion - TBA
- Wicked - TBA
- Superweapon - TBA
- Unity - TBA