Source: CBBC
14. The Junior Nektons
18-10-2018
CBBC
All episodes
13. The Abyss Stares Back
17-10-2018
12. The Phantom Sub
16-10-2018
11. Monster Hunter
15-10-2018
10. Colossal Squid
12-10-2018
9. Fossil
11-10-2018
8. The Test
10-10-2018
7. Captured
09-10-2018
6. Lonesome Jim
08-10-2018
5. The Devil's Sea Mystery
05-10-2018
Series 2: 4. Treaturous Waters
02-08-2018
Series 2: 12. Thunder And Lightening
14-08-2018
3. A.i.m.y.
03-10-2018
Series 2: 3. Mermaids
01-08-2018
25. Loki's Castle
31-07-2018
Series 2: 2. The Baltic Sea Anomaly
Series 2: 13. The Gates
15-08-2018
20. The Sirens Song
24-07-2018
