Infestation

 is the second episode of the second season of Under the Dome.

Synopsis
Having being spared by The Dome, Big Jim starts to have a change of heart, changing rapidly from the previous mindset of himself being most important, to being generally helpful towards the entire town. Residents start to trust him considerably more, thinking of him as a hero for sacrificing himself. Rebecca takes action after a Caterpillar infestation begins to take control of all the town's crops, by burning fields, and later enlisting the help of Big Jim and Barbie to instead use an old plane to spray the fields with pesticides. This nearly sees the demise of Barbie as fuel runs low on the aeroplane, however, Big Jim saves his life by revealing a secret reserve tank, enabling Barbie to land safely - solidifying Jim's status of hero. Following Angie's murder, there is a manhunt for the person responsible for the crime. Initially, the girl who was resuced by Julia is the main suspect, as her shoe print was found near the crime scene in a puddle of blood, however it is soon revealed that it was a man who did the deed, thanks to bruising on Angie's arm, signifying a strengthened struggle that only a man could have done. Jim and Junior both suspect each other initially, and with the persuasion of Joe, Junior heads to the prison cell to murder this mysterious stranger, before being stopped by Julia and Sam. Junior then heads to his Uncle Sam's shack to reveal that the previous night, he was drunk, and that he found Angie's bracelet under his bed, therefore Junior believes that he may have been the man who killed Angie.