Captain MacKenzie Calhoun has faced incredible odds before, but nothing he has ever experienced could prepare him for the simultaneous threats from two of the most destructive forces he’s ever encountered. The first is the D’myurj—a mysterious and powerful alien race bent on either the complete domination of humanity or its destruction... a potentially massive risk to the very foundations of Starfleet, one that goes so deep it’s impossible to determine whom to trust. The second is even more alarming: Morgan Primus, once a living creature with a soul and a conscience, now an incredibly sophisticated computer simulation taking up residence within the very core of the U.S.S. Excalibur... and quickly becoming a growing menace for the Federation. MacKenzie Calhoun is playing a dangerous game as he attempts to outwit and outmaneuver these new enemies, with the fate of the Excalibur crew members and potentially the lives of billions at stake...

The first installment in a brand-new three-part digital-first Star Trek: New Frontier e-novel from New York Times bestselling author Peter David! Captain Mackenzie Calhoun and the crew of the U.S.S. Excalibur are back, picking up three months after the stunning events depicted in New Frontier: Blind Man’s Bluff. Calhoun's search of Xenex has failed to find any survivors, and now he is bound and determined to track down the race that killed them—the D'myurj and their associates, the Brethren—and exact vengeance upon them. His search will take the Excalibur crew into a pocket universe, where he discovers not only the homeworld of the D’myurj, but another race that shares Calhoun's determination to obliterate his opponents. But is this new race truly an ally…or an even greater threat?

Nothing could have prepared Captain Calhoun for simultaneous threats from the D'myurj, bent on the domination or destruction of humanity, and Morgan Primus, a sophisticated computer simulation taking up residence within the very core of the U.S.S. Excalibur.

Captain Mackenzie Calhoun has often been accused of playing God, but he has never faced off against real gods—until now. As Captain Kirk did before him, Calhoun has encountered beings of unnatural power and abilities verging on godhood, and who claim to be the very individuals who inspired the Greek, Roman, Norse, and, other pantheons from Earth culture. These beings say that all they want is our worship, and in return for it will provide us with a peaceful galaxy-wide paradise of perfect health and endless pleasure. When the Federation, in the person of Captain Calhoun and the crew of the U.S.S. Excalibur, refused their offer, the resulting battle left Morgan Primus dead and Lieutenant Mark McHenry, whose own powers over time and space had proved to be substantial, in a limbo beyond death. Now, with a wounded ship and an injured crew, Captain Calhoun, along with Captain Shelby and the crew of the Trident, must face these god-like beings once again, with the fate of galactic civilization at stake.

Years before they served together on board the U.S.S. EnterpriseTM, Commander William Riker and ship's counselor Deanna Troi had a tempestuous love affair on her home planet of Betazed. Now, their passions have cooled and they serve together as friends. Yet the memories of that time linger and Riker and Troi remain Imzadi- a powerful Betazoid term that describes the enduring bond they still share. During delicate negotiations with an aggressive race called the Sindareen Deanna Troi mysteriously falls ill and dies. But her death is only the beginning of the adventure for Commander Riker, an adventure that will take him across time, pit him against one of his closest friends, and force him to choose between Starfleet's strictest rule and the one he calls Imzadi.

There's a bar called "The Captain's Table," where those who have commanded mighty vessels of every shape and era can meet, relax, and share a friendly drink or two with others of their calling. Sometimes a brawl may break out but it's all in the family, more or less. Just remember, the first round of drinks is always paid for with a story...even in Thallonian space. Six years ago, long before he took command of the Starship Excalibur, a young Starfleet officer named Mackenzie Calhoun served as first officer aboard the U.S.S. Grissom. Then disaster struck, and Calhoun took the blame. A court-martial led to his own angry resignation from Starfleet...or so it appeared. At long last Captain Calhoun reveals the true story behind the greatest tragedy of his life.

Captain Calhoun and the crew of the "U.S.S. Excalibur" are on Thallon when their sensors detect strange vibrations coming from beneath the surface of the planet.