Monster Mash/Block Party
- Episode aired Nov 10, 2018
- TV-Y
- 23m
[HBO] HD. Hugo, Tillie and Simon go to Monster Sitters' HQ for a dance party; plus, Tillie needs to clean up before she can play with her new truck.[HBO] HD. Hugo, Tillie and Simon go to Monster Sitters' HQ for a dance party; plus, Tillie needs to clean up before she can play with her new truck.[HBO] HD. Hugo, Tillie and Simon go to Monster Sitters' HQ for a dance party; plus, Tillie needs to clean up before she can play with her new truck.