While the Enterprise passes through a strange energy cloud, a mysterious light force enters the ship and impregnates Ensign Isel who, within days, gives birth to a baby girl, Irska. The child grows up at a tremendous rate and while she appears to be human, it is feared she could endanger the ship after a strange alien spacecraft appears and puts everyone in jeopardy….

Attacked while exploring a new sector of space, Captain James T. Kirk and his crew find themselves thrust in the middle of a war. The USS Eagle, lost eight years before, is now in the clutches of a woman who bends starships and their captains to her will and has been reverse engineered into a fleet that is bent on domination and genocide. The Enterprise may be the only ship able to stop the Peshan homeworld from falling to Alersa and her enemy starfleet.

The horrific story finds a battle damaged Enterprise caught between an incurable contagion that threatens to overrun the galaxy, the pull of a dying star, and Klingons poised to attack. Like all of the best Star Trek episodes, “Blood and Fire” finds the Enterprise crew facing their own human fears and failings as they have to weigh the costs and decide how much personal risk to take in order to save the people around them.