"Tropical Depression" is the ninth Lost mobisode. It features Dr. Arzt and Michael talking on the beach.


Dr. Arzt is catching a Medusa spider on the beach near the jungle when Michael comes up and asks about the weather conditions for launching the raft tomorrow. Then Arzt admits he made up the story about the monsoon season because he wanted them to launch the raft as soon as possible. He then tells an uncomfortable Michael that he went to Sydney to meet a woman whom he had met on the internet for which he used a picture of one of his buddies instead of his own. She disappeared during their first dinner in a restaurant. The worst part is, he could have stayed and visited some bars in Sydney, but instead he booked an early flight back to Los Angeles: Oceanic Flight 815. Michael says he would love to feel sorry for him, but that none of them want to be on the Island. Arzt apologizes for lying and Michael leaves, saying the raft is finished and they're going to bring back help.


Production notes

  • The production code/mobisode number for this mobisode is 111, even though it was the ninth one released.
  • The running time is 03:00.
  • This mobisode fixes the seeming continuity error of the imminent monsoon season predicted by Arzt not occurring. ("Born to Run")
  • There is a "making of" article about this mobisode in "Cabin Fever!" of Lost: The Official Magazine.


  • The title implies that the mobisode is dealing with weather conditions, but it is really all about Arzt's mood.

Recurring themes

Literary techniques

  • Arzt promises to be the first to welcome the rescuers, not knowing he will be blown to pieces by then. (Foreshadowing)  (Irony)

Episode references

  • Arzt has already told Michael he should launch the raft soon because of weather conditions. ("Born to Run")
  • Arzt is catching spiders. ("Exposé")

External links