Bob's universe is expanding. More and more new colony ships are being built to transport people to new worlds. Immortality brought many opportunities, but also brought many sorrows. Replicants begin to understand how fragile and finite the lives of people and creatures of other worlds are, and therefore how valuable. While exploring space, Bob discovers another species of intelligent beings, but they are pure evil and directly threaten the survival of humanity. So far Bob has not suffered defeat, but this time everything may end differently for him.