Here is the promo for the season 5 finale of the Walking Dead called "Conquer". This episode is going to be different in that it is 90 minutes long. I expect a fight between the Alexandrians and Ricks crew is likely to occur, as is a battle with the evil Wolves group outside the walls. A lot is going to come to a head.
It should also be noted that about this time is when Carl was shot in head, but lives.
The All Things Walking Dead HQ
Who is Abraham Ford?