Hey. I think this intro goes this way:
[ Tab from: https://www.guitartabs.cc/tabs/p/poets_of_the_fall/overboard_tab.html ]
e:----2-------4-------6-------4---------00-000-2-2-22-22-4-4-444-2-2-22-22-|
B:--0---0---2---2---4---4---2---2-------00-000-2-2-22-22-4-4-444-2-2-22-22-|
G:-------------------------------------------------------------------------|
D:-------------------------------------------------------------------------|
A:-------------------------------------------------------------------------|
E:-------------------------------------------------------------------------|