How I Ended This Summer takes place on a desolate island that plays home to an isolated polar stationed. While stationed there Sergei, who is a meteorologist and fresh out of college Pavel find themselves facing the consequences of living in a remote part of the world. After Pave receives a message on the out post's radio he struggles to find the perfect time to bring it up with Sergei. Sergei begins to become fearful and suspicious of his college grad assistant adding to hostilities between the two of them. Pavel struggles to calm the tense atmosphere the two find themselves in as Sergei descends into madness.