| Episode Number and Title | Children of this Episode | Parent |
|---|---|---|
| View Tree - 833 : Water, Water, Everywhere and not a drop to think | 22326, 22327, 22328, 22329 | 816 |
| Episode Number and Title | Children of this Episode | Parent |
|---|---|---|
| View Tree - 22326 : Just One Snag | 22461, 22462, 22463 | 833 |
| Episode Number and Title | Children of this Episode | Parent |
|---|---|---|
| View Tree - 22462 : Strange Convergence | 23306, 23307 | 22326 |
| Episode Number and Title | Children of this Episode | Parent |
|---|---|---|
| View Tree - 23307 : The Second Marvellous Device | 23336, 23337 | 22462 |
| Episode Number and Title | Children of this Episode | Parent |
|---|---|---|
| View Tree - 23336 : A Third Marvelous Device? | 25031 | 23307 |
| Episode Number and Title | Children of this Episode | Parent |
|---|---|---|
| View Tree - 25031 : The Peculiar Map | 25041, 25042, 25043 | 23336 |
| Episode Number and Title | Children of this Episode | Parent |
|---|---|---|
| View Tree - 25043 : What about Mist? | 46775, 46776, 46777 | 25031 |
| Episode Number and Title | Children of this Episode | Parent |
|---|---|---|
| View Tree - 46775 : The Portal | 47083, 47084, 47085, 47086, 47087, 47088 | 25043 |
| Episode Number and Title | Children of this Episode | Parent |
|---|---|---|
| View Tree - 47088 : Reunited with Velus | 47894, 47895, 47896 | 46775 |
| Episode Number and Title | Children of this Episode | Parent |
|---|---|---|
| View Tree - 47896 : A Theory is Disproved | 47898, 47899, 47900 | 47088 |