Zeus (in flashback)
A group of Titans, future children of the originals, arrrive and rescue Donna Troy from the clutches of Dark Angel. However, in the confusion, Dark Angel is able to escape. These Titans and Troia then head for Titans tower, where the current Titans naturally fight against them, thinking that they're under attack. A convalescent Arsenal is able to help bring things to a close, and Jesse thinks she half recognises the speedster in the group.
The future Titans debate how much of the truth they should tell the current team: they were sent here by Zeus and have twenty-four hours to help the memory of Donna Troy to return, or she (the mother of group member Darkstar) will be forgotten forever. However, they are not to tell anyone of the existence of the multiple worlds of Hypertime. Tempest creates a portal to the 'netherworld' inhabited by Dark Angel - and just in time, for our Titans are beginning to realise that there's something familiar about each of these visiting Titans.