Talk about an unexpected combination - Hal Jordan and other ring-bearers, along with several rings, are transported to the same dimension as that of Star Fleet. When an away team discovers a dead alien on a dead planet, they bring him and the rings that are near his body back to the Enterprise to study. Scotty, curious as always, bombards the rings with tachyon rays and energizes them. Suddenly Uhura, Bones, and Chekov have been chosen by the rings powered by positive emotions, while the other rings zoom off to choose a Gorn, a Klingon, and a Romulan as their wearers. And so it begins.
Seeing the faces of the Enterprise crew pictured as the actors from the latest movies (Pine, Quinto, Pegg, etc.), as well as seeing the Green Lantern joining forces with Star Fleet takes a bit of mental readjustment. Once that realignment is done, it is entertaining to see Chekov zipping around outside the ship as he practices with his ring, or to hear Kirk complaining that Jordan acts without thinking (takes one to know one). It seems that the evil, or at least very selfish, ring-bearers have found like-minded allies among the races outside the Federation, but they soon have bigger fish to fry. Nekron, the foe they were all fighting during those last moments in their own universe has also been transported and has begun his new bid to rule the galaxy by reanimating the planet Vulcan and all those who perished on it. (Yup, you heard it here - Vulcan zombies.)
The personalities of the Enterprise crew come through clearly in their dialogue, body language, and actions. The tensions between the Federation and the Romulans, Klingons, and Gorn are faithful to Star Trek canon, just as the portrayals of Hal, the other Lanterns, and their surviving allies also stay true to their own history. Although some readers may not care for this combination, there will be many fans who find the possibilities very attractive.
I read an e-book provided by the publisher through NetGalley.