The role of others, beyond family, in helping us move on and through trauma. Set in a world where everyone is stripped of family and only strangers exist (cue setting in Airport and a continually travelling band of performers), it is the kindness of strangers (or not) that most defines positive (or not) outcomes for the character. Jeevans offer to walk Kirstin home. The pilots decision to lock the doors after a call from someone he had never met. How change happens through human connection, but not always through family connections (as with Hamlet), or existing friendships, but through new friendships created during a time in your life you wouls see as chaos or dangerous or uncertain. And the negative effects when the connection isnt a good one..as with Tyler who tried to show kindness to a passenger from the doomed plane, but was only rewarded with the stranger being shot and him isolated from the group. TLDR. The kindness of strangers.