Stardate not given: Some six years into the future, Kes has reached the morilogium, the final phase of her natural lifespan of nine years. The Doctor attempts to prolong her life using a biotemporal chamber. A few moments later Kes finds herself at an earlier time of her life. She has a husband, Tom, a daughter, Linnis, a son-in-law, Harry, and a grandson, Andrew. Kes experiences several more temporal leaps, which take her further to the past each time. She finds out that the phenomenon is caused by residual chronitons in her body after a Krenim attack in the so-called "Year of Hell". The particles were reactivated by the biotemporal field. When she arrives at the time of the particular Krenim attack, Kes finds out the temporal variance of the chroniton torpedo. This information is required to bring her in temporal sync again. In the present the Doctor begins the treatment. Kes travels even further back in time, eventually to her conception, but she can be stabilized in the present.

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