Beginning of the Adrift Event for TNG characters and starships. Duration: 2 weeks for Easy and Normal versions; with staggered-start 1 week for Legendary version.
Levels of the Event are timed to open throughout the first week, revealing the storyline about the Romulan Neutral Zone.... By the end of week one, all levels are open for Easy and Normal versions. Also, at the end of week one, the Legendary version becomes available (all levels, open immediately).