[vicky_molokh]

Also, it's not hard to conclude that before the isolation, PCs predicted this isolation, suited-up, randomly found (by time-sight) a relatively safe spot in the future after the explosion but before the second, ultra-nasty part of the catastrophe. Whether both did it from the same time and/or the same timeLINE should be unclear (aside from hidden faces, the comm systems mile their voices unrecognizable).

The process of Setting Things Right should probably include some repair work, bomb disposal, and shooting either the original crew or some remaining temporal terrorists, either of which should seen to blame for the event. All within the period from T-30 to T+10 minutes.

The culmination should have at least three possible outcomes, including: Rocks Fall Everybody Dies, a Heroic Sacrifice on the part of the PC(s), or a (mostly) Happy Ending (for everyone except temporal clones from 'vanished' timelines, if any).