Invasion
In Season 2, we pick up with the team five years later, as they fight off a secret alien invasion affecting the entire planet.
Episodes
1 Happy New Year Apr 28, 2012 
2 Earthlings May 5, 2012 
3 Alienated May 12, 2012 
4 Salvage May 19, 2012 
5 Beneath May 26, 2012 
6 Bloodlines Jun 2, 2012 
7 Depths Jun 9, 2012 
8 Satisfaction Sep 29, 2012 
9 Darkest Oct 6, 2012 
10 Before the Dawn Jan 5, 2013 
11 Cornered Jan 12, 2013 
12 True Colors Jan 19, 2013 
13 The Fix Jan 26, 2013 
14 Runaways Feb 2, 2013 
15 War Feb 9, 2013 
16 Complications Feb 16, 2013 
17 The Hunt Feb 23, 2013 
18 Intervention Mar 2, 2013 
19 Summit Mar 9, 2013 
20 Endgame Mar 16, 2013