The situation heats up when an Earth Force heavy cruiser arrives to "protect Earth's interests", and the fusion reactors on Epsilon 3 start going out of control, and may blow up the planet and Babylon 5.
Casts:
Bruce Boxleitner, Jerry Doyle, Mira Furlan, Richard Biggs, Andreas Katsulas, Peter Jurasik, Stephen Furst, Bill Mumy, Tracy Scoggins, Patricia Tallman, Jeff Conaway