Sezon 4
Bölümler
1 The Hole Truth 30 May 2022 
2 The Biggest 31 May 2022 
3 Little Problems 1 Haz 2022 
4 The Lead 2 Haz 2022 
5 AWOL 6 Haz 2022 
6 Deceptive Appearances 7 Haz 2022 
7 Glass Houses 8 Haz 2022 
8 Unidentified Floating Objects 9 Haz 2022 
9 At the Bottom of the Gyre 13 Haz 2022 
10 Walking with Fish 14 Haz 2022 
11 Getting Warmer 15 Haz 2022 
12 The Big Clue 16 Haz 2022 
13 The Inside Story 20 Haz 2022