In the last episode, Tony finds Jonny in front of where they were camping. Tony wakes up Shaun and they talk to Jonny about how he survived and escaped. He tells the story and the three friends embarked on their journey once again. By PatchWee or FETUS. (Same person) Uploading this mission on YouTube and if you don't feel like download this, watch the video about this mission.
YouTube: INeedToRecordShit. Enjoy! ^.^