Season 4

1. A Few Good Grugs

2. A Valley Shine Day

3. Chalk the Line

4. Weighting Is the Hardest Part

5. Wrestlebabia: The Musical

6. Flowers for Munk

7. They Might Be Sky Giants

8. The Grugest Story Ever Told

9. Worms of Endearment

10. Dr. StrangeGrug or How I Learned to Stop Worrying and Love the Spear

11. Tunnel of Terror

12. Creature from the Crood Lagoon

13. Voice Fail

14. Punch-Thunk Love

15. Nay Boors

16. Caverns and Creepers

17. Rad Teacher

18. Grug's First Chance

19. Furry Road

20. My Big Fat Gran Wedding

21. The Strutting Edge

22. Can't Hardly Bait

23. Crood Detente

24. This Is an End