When the sun suddenly starts killing everything in its path, passengers on an overnight flight from Brussels attempt to survive by any means necessary.
No. However, the main heroine struggles with suicidal thoughts. We learn that on the trip she was planning to take, she was going to try to kill herself. (SPOILER) She also attempts to commit suicide through letting herself be exposed to the deadly sunlight, but she is stopped.
I women proposes staying in the sunlight to avoid going back in and being harassed/killed by soldiers. A man says if she stays out then he will stay with her.
They made her leave her cat behind if she wanted to survive the sunpocalypse. No pets allowed. She made sure to leave her cat with some folks she knew so kitty wouldn't be alone at least but oof.
Not that we see occur, but when the sun started killing everything, it took pets with it. At times, we see pets either before or after that occurred. Like when Ines is going through an apartment in s2e5.
s1e1: 22:30 - 23:00 a man is coughing, sounds like tu*, but nothing happens (during the scene the passenger that is ill is taken to the toilet and Ayaz grabs the gun and points it at Terenzio);
Ines talks about having struggled with an eating disorder in the second series, and is seen in a flashback interacting with her family after presumably leaving rehab for it.