Exosquad - Season 2 - Eps 25: Call of the Unknown
Able Squad blasts its way into the alien complex, and is pursued inside by Typhonus and his troops. After a battle which is made more difficult by interior defenses, Able Squad escapes into a different section. Meanwhile the alien structure begins to grow out of the ground. After the exosquad has blasted its way out and come to the aid of the jumptroops with Professor Algernon, the spire begins emitting great energy waves.
About Exosquad

Title: Exosquad
First Air Date: 1993-09-18
Last Air Date: 1994-05-01
Status: Canceled
Rating: 5.9/10 (from 16 votes)
Language: EN
Seasons: 2
Total Episodes: 52
Network: Syndication
Genres: Animation, Sci-Fi & Fantasy, Action & Adventure
Production Companies: Unknown
Synopsis
Sometime in the 22nd century, humans have fully terraformed and colonized Venus and Mars. The Neosapiens, an artificially engineered race created to be slaves for the Terrans, have turned against their masters and formed the Neosapien Order/Empire/Commonwealth. Under the rule of the calculating Governor General Phaeton, the Neosapiens have launched an invasion of Earth and Venus. The ExoFleet, the Homeworlds' space navy (in particular, Able Squad, a group of Exo-Frame pilots led by Lieutenant J.T. Marsh), fight against the invasion in an interplanetary war to protect the Terrans.
Cast

Robby Benson
Squad Leader Lt. J.T. Marsh / Jonas Simbacca (voice)

Michael Donovan
Wolf Bronski (voice)

Teryl Rothery
Lt. Maggie Weston (voice)

Lisa Ann Beley
Lt. Nara Burns (voice)

Michael Benyaer
Pilot 1C Kaz Takagi / Praetorius (voice)

Janyse Jaud
Sgt. Rita Torres (voice)

Garry Chalk
Marsala / Shiva / Charles McKenna (voice)

John Payne
Alec DeLeon / Sean Napier (voice)

Wally Marsh
Admiral Winfield (voice)

Richard Newman
Governor General Phaeton / Captain Marcus (voice)