Source: CBBC
20. The Sirens Song
17-05-2022
CBBC
All episodes
19. The Proteus Factor
16-05-2022
18. Field Of Giants
12-05-2022
17. The Sunken Gallery
11-05-2022
16. Tunnel
10-05-2022
15. Treasure Of The Islanders
09-05-2022
14. The Junior Nektons
05-05-2022
13. The Abyss Stares Back
04-05-2022
12. The Phantom Sub
03-05-2022
11. Monster Hunter
02-05-2022
Series 2: 12. Thunder And Lightening
09-03-2022
3. A.i.m.y.
18-04-2022
6. Lonesome Jim
21-04-2022
25. Loki's Castle
03-02-2022
Series 2: 2. The Baltic Sea Anomaly
08-02-2022
4. Digging Deeper
19-04-2022
7. Captured
25-04-2022
9. Fossil
27-04-2022
1. Here Be Dragons
13-04-2022
