OK...

Timeline wise: S1 was set in 2012, S2 in 2013. S3 started in NOvember 2013 I believe but must have gone on into 2014...so puts S4 into 2014 at least but I'm not dead cert.

1. So Kellogg is..The Traveller? Or just stuck way in the past?

2. Kiera.....oooh bleep...she gambled everything on getting home but...

3. So who actually is Alec in the new timeline?

Thank you very much people...was an honour...now I have to home there's another cool show to watch somewhere.