Sections down below! (and any corrections).

You have recently been commissioned for a deep space mission, but something has gone wrong. It you're going to survive you better pay attention to this crewman's guide to the Nemesis.

Sections
Intro - 00:00
Components - 02:13
Setup - 09:25
Ship - 09:54
Players - 15:51
Gameplay - 19:06
Secret Objectives - 22:28
Turn Structure and Actions - 25:13
Movement - 28:44
Heavy Objects - 32:43
Trading - 34:05
Objects, Crafting and Searching - 34:48
Location Actions - 39:10
Malfunctions - 41:16
Critical Rooms - 41:40
Encounters, Wounds and Attacking - 46:24
Contamination - 56:30
Hints and the Blank Token - 1:00:00
Intruder Phase - 1:05:02
New Player Phase - 1:08:18
End - 1:09:43

Corrections and additional notes:

Fire:
One small error. (I actually considerd doing it the way you explained in the video instead XD )
Players take damage from fire when they end their turn in a room with fire.
So if you do your first 2 actions and end in a room with fire you take one light wound then when it comes back to you and you do more actions or pass and end your turn in the same room or other room with fire you take one more light wound.
Only aliens take damage from fire during the "fire damage step"
- Credit: Robin Rosendahl

Robin is absolutely correct! The rules refer to each opportunity a player has to take 2 actions as a "round" thus each "Player Phase" a player will participate in a maximum of 2 rounds; they will only play the first round if they pass at the end of it (thus skipping round 2 entirely). If you end a round in a room with fire you take a light wound. This can affect twice you if you play both rounds and end each of them in a room with fire. You DO NOT take a light wound in the intruder phase as I have incorrectly stated.
- Mike

You can also remove contamination via green item (alcohol or sth alike). Rest action removes them only from hand, and surgery removes them from the whole deck.
- Credit: Albert Andrzejewski

Correct Albert! Thanks for the correction :)
- Mike

Larva:
A larva is placed on your player board if you “rest” while you have an “infected” contamination card in your deck, hand or discard, or if you’re attacked by one (they climb inside you and are placed on your player board; this is instead of drawing an intruder attack card). The only way to remove a larva toke from your player board, or an "infected" contamination card is in the surgery! If you are attacked by a larva and there is one already one on your board then you take a contamination card! If you rest while you have an "infected" card in hand, deck or discard and a larva on your player board you die, and a creeper is placed in the room where you died.
- Mike

3 serious wounds doesn't kill you. "When a Character with 3 serious wounds suffers any additional Wound, they are instantly killed"
- Credit: Gareth Price