If a House Guest chooses to exercise the Power of Veto, the Head of Household is obligated to name a replacement nominee.

[14] On February 27, 2024, it was announced that Live Feeds would not be reinstated and the "Digital Dailies" introduced during season 11 would return for a second year, featuring uncut footage from the house that will be published weekly on the show's website.

Canada's Favourite Houseguest will also return with the Canadian public voting for the recipient of a $10,000 prize courtesy of Winners.

Ibrahim Appiah, a 34-year-old sales engineer from Vancouver, British Columbia, was originally announced as a member of the cast, but was later removed for unknown reasons.

This voting process had previously occurred in Big Brother Canada 3 as part of an Instant Eviction twist.

The game quickly became divided along gender lines, with both a men's and women's alliance, known as "Big Sister".

On Day 8, Avery and Janine, as well as Tola, Dinis, and Matthew, competed in the Down the Rabbit Hole Power of Veto competition.

For being the first four HouseGuests eliminated during the Head of Household competition, Dinis, Elijah, Todd, and Vivek became Have-Nots for the week.

On Day 15, Elijah and Vivek, alongside Dinis, Lexus, and Avery, competed in the Comp Beast Boot Camp Power of Veto competition, hosted by Demetres from Season 5.

On Day 17, Dinis used the Power of Veto on Vivek, and Victoria named Donna as the replacement nominee.

On Day 18, the HouseGuests were given the task to split into two crews and write, direct, and shoot short films.

The team of Avery, Bayleigh, Elijah, Lexus, Matthew, and Vivek won and each earned $1000 from Samsung.

In addition, they will be offered temptations, such as food, beer, a massage from Season 11 HouseGuest Roberto, slop passes, and an advantage, throughout the competition to lure them away from the backlot.

On Day 22, Bayleigh and Elijah, plus Kayla, Dinis, and Anthony, competed in the Fun In the Sun Power of Veto competition.

To protect the "Hot Chocolate" alliance, Kayla, Anthony, and Victoria worked to convince Vivek to backdoor Dinis, his closest ally.

In addition, if a HouseGuest chooses, they can balance three teeth on their smaller ledge to freeze a competitor for two minutes.

On Day 39, Alejandra and Olivia from Season 6 entered the House to give Victoria a secret mission from Samsung.

The HouseGuests were then presented with eight roles: the Head of Household, two nominees, a slop pass recipient, three Veto players, and no eviction vote.

Avery, Kayla, Lexus, Todd, and Tola then competed in the Blood Thirsty Power of Veto competition.

Fearing the girls within "Hot Chocolate", Anthony began spreading lies throughout the alliance to put the target on Kayla.

On Day 43, Todd and Tola, coupled with Bayleigh, Lexus, and Kayla, competed in the Off the Grid Power of Veto competition.

On Day 45, Bayleigh used the Power of Veto on Todd, and Avery named Kayla as the replacement nominee.

The last HouseGuest standing will be the new Head of Household and secretly earn the ability to have a strategy session with Season 10 winner Kevin Jacobs.

On Day 50, Avery and Bayleigh, beside Anthony, Todd, and Victoria, focused in the Eyes on the Sky Power of Veto competition, sponsored by "Endy".

On Day 57, the HouseGuests gathered in The Socialite Power of Veto competition, sponsored by "Social Lite Vodka".

On Day 61, the HouseGuests attended the "Big Brother Canada Awards", where they had the opportunity to watch and reminisce with moments from the season.

Using the empty seat numbers, they must collect a briefcase, climb on top of the train and jump to the ground.

At the live Veto Meeting, Lexus took herself off the block, and Anthony was automatically named the replacement nominee.

On Day 66, Bayleigh and Lexus then faced off in the Cave of Secrets Part 2 of the Final Head of Household competition.

On Day 69, after receiving Kayla, Avery, Tola, Victoria, Todd, and Lexus' votes, Anthony was deemed the runner-up and walked away with $20,000, and Bayleigh left the House with $100,000, $10,000 each from "Sonicare", "TonyBet", and "Endy", a two-year lease on a 2024 Infinity QX60 SUV, a Cuban vacation from "Sunwing", a $10,000 "Samsung Galaxy" prize pack, $10,000 worth of clothes from "Winners", a year's worth of food from "Skip the Dishes", and was deemed the winner of Big Brother Canada 12.