The Paradox

Captain laforge tries to stop Janeway from going to the past to change history. She succeeds in creating a spatial rift and altering the timeline. Picard is back in command of the Enterprise. The temporal rapture begins disrupting the normal flow of time. Picard uses the rapture to collapse the barriers between alternate realities. Thousands of Enterprises appear and start attacking each other. Several of the ships go into the anomaly to collapse it. One Picard escapes on a shuttle as all the Enterprises get destroyed.