He-Man and the Masters of the Universe (2002)
S01E14 Underworld
After the peace negotiations between the Speleans and the Caligars collapse, King Randor, Prince Adam, and Man-At-Arms head to Subternia in hopes of facilitating a resolution. Meanwhile, the Evil Warriors plot to assault Castle Grayskull from beneath, having exhausted all other strategies. Before long, the two factions collide in the shadowy depths of Eternia...
Season 1 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
The Beginning (1)
The Beginning (2)
The Beginning (3)
The Courage of Adam
Sky War
The Deep End
Lessons
Siren's Song
The Ties That Bind
Dragon's Brood
Turnabout
Mekaneck's Lament
Night of the Shadow Beasts
Underworld
The Mystery of Anwat Gar
The Monster Within
Roboto's Gambit
Trust
Orko's Garden
Buzz-Off's Pride
Snake Pit
The Island
The Sweet Smell of Victory
Separation
The Council of Evil (1)
The Council of Evil (2)