Justice League
S04E19 Secret of the Deep
Title: Mystery Beneath the Waves Plot: Naval vessels are vanishing, prompting the Seaview to investigate the underwater facility behind these incidents. They discover a heavily fortified sea-lab, guarded by monstrous sea creatures. Adding to the tension, their visiting specialist is secretly working against them. Throughout their perilous journey, familiar menacing marine life resurfaces from past encounters, including a massive whale and a peculiar, bulbous-eyed beast that fans will recognize from episodes like "Deadly Creature Below." The crew must navigate these threats while uncovering the truth behind the lab’s sinister operations.
Season 4 Episodes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Fires of Death
The Deadly Dolls
Cave of the Dead
Journey with Fear
Sealed Orders
Man of Many Faces
Fatal Cargo
Time Lock
Rescue
Terror
A Time to Die
Blow Up
Deadly Amphibians
The Return of Blackbeard
Terrible Leprechaun
The Lobster Man
Nightmare
The Abominable Snowman
Secret of the Deep
Man-Beast
Savage Jungle
Flaming Ice
Attack!
Edge of Doom
The Death Clock
No Way Back