第23季以Big World!Big Adventures!为主题，即将于2019年播出，共23集。
上一季：第22季
下一季：第24季
剧集[]
| 集数 | 标题 |
|---|---|
| 1 | Free the Roads |
| 2 | Crowning Around |
| 3 | Chucklesome Trucks |
| 4 | The Other Big Engine |
| 5 | Heart of Gold |
| 6 | Batucada |
| 7 | Gordon Gets the Giggles |
| 8 | Thomas Makes a Mistake |
| 9 | Diesel Do Right |
| 10 | Grudge Match |
| 11 | Steam Team to the Rescue |
| 12 | Panicky Percy |
| 13 | All Tracks Lead to Rome |
| 14 | Mines of Mystery |
| 15 | Laid Back Shane |
| 16 | Rangers of the Rails |
| 17 | Wish You Were Here |
| 18 | Out of Site |
| 19 | First Day on Sodor! |
| 20 | Lorenzo's Solo |
| 21 | Deep Trouble |
| 22 | Too Loud, Thomas |
| 23 | Diesel Glows Away |