Mr. Haruna plans a business trip to their old town, and Laura hopes to reunite with her old friend, Melanie. Laura attempts to send Melanie a letter because she could not reach her by phone. The answering machine doesn't seem to be on and nobody picks up. As days go by, with no response to the letter and no still no success at reaching Melanie by phone, Laura begins to give up hope. She thinks that maybe after being apart for so long, Melanie doesn't remember her anymore. She remembers back when she left her old town, that Melanie promised to write her every day, or at least maybe other day. That sure didn't work out. Upset over Laura's being upset, Hamtaro decides it's time to take action. He decides that someone needs to get to the town that Melanie is in and get her that letter. It could have been lost in the mail. Just one question: who to do it? It's decided that Boss and Jingle will do it. As field hamsters, they're open. So Jingle takes Boss on a trip around the world, much to t (thetvdb.com)