Follow a dysfunctional team of MI5 agents—and their obnoxious boss, the notorious Jackson Lamb—as they navigate the espionage world's smoke and mirrors to defend England from sinister forces.
No named characters are homeless/become homeless, but a homeless man is briefly shown onscreen when Lamb is on his way to Catherine's house in season 1.
It's implied (and official in the book series the show is based on) that a main character was abandoned by his mother in the past, and was raised by his grandparents.
This is likely to be explored more in later seasons, but as of season 2, it's barely been mentioned.
Spider lies to River about whether he said "blue shirt, white tee" or "white shirt, blue tee." This makes the characters (and the viewer) question what's true.
You do not see it but there is an investigation of a bomb going off in the penguin enclosure at a zoo. It’s mentioned frequently and someone (guy in the back of a police van) says that something (I won’t say what) hit him. Mention of blood etc
Tape is frequently put over Hassan's mouth in season 1.
In season 2, Louisa is grabbed with a hand over her mouth. This briefly makes the viewer think she's being attacked, but it turns out to be Marcus stopping her from doing something dangerous.
No, but in season 2, it seems like a plane is going to be flown into a building. This is referred to by characters as a "Code September", and the building is evacuated. No terrorist attack actually occurs.
Actual cops are referred to as pigs (mostly by Roddy), so they aren't viewed favorably. However, the main characters all work for MI5, another law enforcement organization, even though they rarely follow orders.
Lamb slurping his noodles for about a solid 3 minutes straight at the end of the episode, akin to what Cartwright eloquently describes as "eating like a dying horse".
No, but River panics after realizing he called in a terrorist attack by mistake in season 2. This isn't depicted as an anxiety attack, but could be considered similar.
Jokes about religions (particularly Islam, Christianity, and Buddhism) are made as part of a stand-up comedy routine in season 1. The main plotline of the season is about a college student being kidnapped by white nationalists because he's Muslim.
Dementia is a theme throughout season 4, specifically with David, River’s grandfather. In S4 E6 (the finale), River has to put his grandfather in a memory care facility. While it’s very well written, this could be triggering for those who have been through something like this.
The endings of both season 1 and season 2 are bittersweet. They both involve mourning the loss of a major character, though some things turn out okay, so they aren't entirely sad endings.