Unknown planet, 202... year. From an unwritten letter home from Semyon Koltsov: “Hello, mom, hello, dad! As you, of course, already understood, we did not get to Halo: the portal did not work correctly, and the whole group found ourselves in an unknown place. It's more fun here than at a resort! Every day they try to eat us up, but we cope perfectly well. Recently, a rescue team from Earth arrived - real military men, with weapons and equipment. So, to begin with, we saved them several times ourselves, but gradually they got used to it. Now we need to cross a giant canyon to get to an area where it is possible to open a reverse portal. We tried it a couple of times, but so far it doesn’t work out very well. But don’t worry: we’ll definitely come up with something…”