| Episode Number and Title | Children of this Episode | Parent |
|---|---|---|
| View Tree - 2091 : Astra and Ardua To Help Fred And Velus | 84218, 84219, 84220, 84221, 84222, 84223, 84224, 84225, 84226, 84227 | 2090 |
| Episode Number and Title | Children of this Episode | Parent |
|---|---|---|
| View Tree - 84225 : No Rope but Some Netting | 84277, 84278 | 2091 |
| Episode Number and Title | Children of this Episode | Parent |
|---|---|---|
| View Tree - 84277 : Netting | 99097, 99098, 99099, 99100, 99101, 99102 | 84225 |
| View Tree - 84278 : Theft Alert | 84279, 84280, 84281, 84282 | 84225 |
| Episode Number and Title | Children of this Episode | Parent |
|---|---|---|
| View Tree - 84279 : A Problem in Division | 84286, 84287, 84288, 84289 | 84278 |
| View Tree - 84281 : A Net And A Thing And A This And A That | 99109, 99110, 99111 | 84278 |
| Episode Number and Title | Children of this Episode | Parent |
|---|---|---|
| View Tree - 84289 : More | 99103, 99104, 99105, 99106, 99107, 99108 | 84279 |
| Episode Number and Title | Children of this Episode | Parent |
|---|---|---|
| View Tree - 99103 : Astra Doubles Up | 99112, 99113, 99114 | 84289 |