Amaar and Rayyan cut their honeymoon short and return home so that they can help Sarah deal with her divorce from Yasir. Rayyan tries to drag Sarah to a divorce support group but when Sarah won’t go Rayyan brings the group to her. Meanwhile, Amaar decides to sort out his Imam related issues with Baber and Thorne once and for all.
Amaar needs Baber and Thorne’s cooperation to win a coveted Multi-Faith Award, but Baber and Thorne try to cut Amaar out when they discover the award comes with a cash prize. Meanwhile, Ann sets Sarah up on the worst first-date of her life, which leads to the worst second-date of her life. And Nate and Fatima team up to make a multi-ethnic sandwich.
When Amaar inadvertently leads everyone to believe that the new Mosque is haunted, Sarah runs damage control and suggests he and Rayyan spend the night in the Mosque to prove it’s completely ghost-free. Meanwhile, a love-struck Nate goes to extreme lengths to ask Poppy out on a date. And Thorne helps Baber overcome his irrational fear of Jinn.
In the lead up to the series finale, Amaar reveals to Baber that he plans to be the Imam of the new Mosque. In turn, Baber revolts and forms a splinter Mosque. Meanwhile, Ann is distraught over Charles’ upcoming nuptials to a younger woman and comes up with a bizarre strategy to fight for her man. And Sarah attempts to rejoin the church choir, with fiery results.
In a series finale that lets Little Mosque on the Prairie live up to it’s namesake, Amaar prepares for the grand opening of the new Mosque, while trying to get Baber to end his boycott. Charles returns to Mercy with a plan to win Ann. Sarah reaffirms her Muslim faith; and, with Mercy Anglican burnt to a crisp, Thorne finds an unexpected new home for his congregation.