The season premiered on March 2, 2016 on Global,[1] and ended after 77 days – the longest season to date – on May 12, 2016,[2] where for the first time in Big Brother Canada history a set of siblings won the series after Nick & Philippe Paquette beat Kelsey Faith in a 7–2 jury vote to be crowned the winners of Big Brother Canada 4.

[4] On Day 7, Nikki Grahame and Tim Dormer entered the Big Brother Canada house and were immune for their first week.

If Nick does not live up to expectations and does not win Head of Household, he (and his brother Phil) will be locked away in isolation for the night.

Loveita, Kelsey, and Paige, as well as Sharry, Nick & Phil, and Raul, with Dallas as the host, competed in the What the Shell?

While dressed as mermaids, HouseGuests had to slide down their bumpy lane, grab a letter, and take it back to their puzzle board.

Later in the night everyone except for Loveita, Nikki, and Tim, went head-to-head in the Big Brother Roast Head of Household competition.

Sharry went to campaign to Jared in hopes of saving Loveita from nomination but was told she may be a nominee due to association with her.

On Day 9, Jared, Loveita, Sharry, Nick & Phil, Mitch, and Christine played in the Flip It to Win Power of Veto competition, sponsored by the Brick.

After her Veto win, Christine was given a chance to double her gift card money by selecting the correct couch cushion.

On Day 12, Big Brother gave Cassandra and Joel the task to clean all of the dirty laundry and sheets in the House.

Most people in the house believed Loveita had an easy decision in nominating one of the Third Wheel alliance (composed of Jared, Kelsey and Raul).

Loveita struck a deal with Jared, Kelsey, and Raul and wanted to go after Cassandra due to a rude comment made by her after the Head of Household competition.

The first HouseGuest to finish their puzzle, climb the wall, and hit the buzzer will win the Power of Veto, as well as a special screening of Allegiant.

On Day 23, Joel, Kelsey, and Raul, alongside Dallas, Ramsey, and Jared, saddled up for the Ace in the Hole Power of Veto competition.

For this competition, HouseGuests had to pull themselves on a horse with a rope along a rail, dig up bags containing playing cards, and take it back to their board.

Maddy, Jared, and Raul picked Tim, Nick & Phil, and Joel to play in the Slow Roller Power of Veto competition.

Following Kelsey and Loveita's evictions, the HouseGuests hoped to take control in the Blast From the Past Head of Household competition.

On Day 30, Tim, Dallas, and Ramsey chose Cassandra, Jared, and Mitch to play in the End of the Rainbow Power of Veto competition.

On Day 33, Emmett surprised Kelsey and Loveita to give them the secret task to hide black and white poker chips throughout the House.

The white team of Ramsey, Nick & Phil, Joel, Cassandra, and Raul won and received a cocktail party with Emmett and Tim.

The black team of Dallas, Jared, Maddy, Mitch, and Nikki lost and were forced to clean the House.

On Day 44, Maddy, Jared, Kelsey, Nikki, Cassandra, and Raul scrapped in the Six Blind Mice Power of Veto competition.

On Day 50, the HouseGuests were given a task to have Nikki and Tim pick teams to teach them for a Canadian quiz.

On Day 51, Nick & Phil, Ramsey, and Maddy, as well as Tim, Kelsey, and Nikki, fought in the Spun Out Power of Veto competition.

On Day 58, everyone except for Tim calculated in The Price of POV Power of Veto competition, hosted by Season 3 winner, Sarah Hanlon.

Nick & Phil agreed to wear a skunk suit, sit out of the next POV, and receive a haircut from Sarah.

Joel agreed to eat slop for the rest of the season, not shower for a week, and give up all but a bag of his personal belongings.

Following Jared and Nikki's eviction, the HouseGuests sought a spot in the final four in the Previously on Big Brother Canada Head of Household competition.

The HouseGuest who correctly places the clues on the realtor signs the fastest will win the final Power of Veto of the season.

Nick & Phil and Kelsey then faced off in Part 3 of the Final Head of Household competition, Jury Questions.