Source: CBBC
5. The Devil's Sea Mystery
22-06-2018
CBBC
All episodes
Series 2: 11. The Missing
4. Digging Deeper
21-06-2018
Series 2: 10. Whale Of A Time
3. A.i.m.y.
20-06-2018
Series 2: 9. The Maze
2. The Dark Orca
19-06-2018
Series 2: 8. Hidden Secrets
1. Here Be Dragons
18-06-2018
Series 2: 7. Beware The Sentinels
Series 2: 13. The Gates
14-06-2018
Series 2: 6. Finn Comes Aboard
15-06-2018
Series 2: 3. Mermaids
12-06-2018
Series 2: 1. From The Stars
08-06-2018
14. The Junior Nektons
22-05-2018
9. Fossil
15-05-2018
Series 2: 4. Treaturous Waters
13-06-2018
Series 2: 12. Thunder And Lightening
