Exosquad - Season 2 - Eps 32: Dark River
Marsh, Burns, and Marsala go to South America to retrieve a Terran geneticist named Ketzer, who the ExoFleet hopes will help them discover a weakness in the Neo lords. Although they destroy a Neo patrol they encounter, Draconis becomes aware of their presence in the rain forest. The three are then attacked by green humanoids, who succeed in capturing Nara. They take her to their village. She awakens with her arm hurting. Ketzer is there, for it was he who altered the natives, as well as himself. Ketzer notifies her comrades of her whereabouts, and they soon arrive. The Neos also pick up the signal, and Draconis is convinced by Medusa that he will be rewarded if he were to personally lead a successful attack. Medusa then reports to Livia that Draconis only serves for the sake of his own gain, not out of loyalty. Ketzer asks for the help of the ExoTroopers in attacking the nearby city Manaus. When they refuse he reveals that he has injected Nara with a retrovirus that will alter her DNA to make her like them, but has a compound that will prevent it if they help him. Just then the Neos launch an attack on the village, forcing both the villagers and the exotroopers to flee. Draconis is killed for disloyalty on Livia's order by a group Neo lords, ending Neo pursuit. Marsh tells Ketzer to recreate the compound that will cure Nara, but Ketzer says that he lied when he said there was a cure. Marsh wants to take Ketzer back to the ExoFleet, as were his orders, but Ketzer escapes when his altered humans distract the exotroopers with the possibility of an attack.
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)