The Fourth Season of Boyster was composed of 13 episodes (33 individual episodes), and it was aired of 10 episodes (20 individual episodes). The season premiere was "One Day in Space at a Time". This was the final season of series.
| No. | Episode | Original airdate | Production Code |
|---|---|---|---|
| 1 | "One Day in Space at a Time" | TBA | 401a |
| 2 | "Welcome to Space" | TBA | 401b |
| 3 | "D.I.N.K" | TBA | 402a |
| 4 | "TBA" | TBA | 402b |
| 5 | Fartster | TBA | 403a |
| 6 | "TBA" | TBA | 403b |
| 7 | "Anti-Boyster, Part 1" | TBA | 404a |
| 8 | "Anti-Boyster, Part 2" | TBA | 404b |
| 9 | "Stuffed Curse Pizza" | TBA | 405a |
| 10 | "Conquistador" | TBA | 405b |
| 11 | "TBA" | TBA | 406a |
| 12 | "All Couped Up" | TBA | 406b |
| 13 | "Space Camp, Part 1" | TBA | 407a |
| 14 | "Space Camp, Part 2" | TBA | 407b |
| 15 | "Friend Card" | TBA | 408a |
| 16 | "TBA" | TBA | 408b |
| 17 | "TBA" | TBA | 409a |
| 18 | "Cheer Up, Boyster" | TBA | 409b |
| 19 | Boyster vs. The End, Part 1 | TBA | 410a |
| 20 | Boyster vs. The End, Part 2 | TBA | 410b |
| 21 | Boyster vs. The End, Part 3 | TBA | 411a |
| 22 | Boyster vs. The End, Part Finale | TBA | 411b |
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