Ever since Chantal Phee heard a family member name drop the Martin Street Co-operative, she's wondered: what is it? Even her dad didn't know he'd grown up in the Black-owned housing co-op in Antigonish, or what that co-op even meant. CBC producer Rose Murphy roadtrips with Chantal to find answers in this week's documentary about untold histories, and the power of having a home. Note: A prominent voice in the radio documentary, Jana MacDonald, died unexpectedly on May 19. It's her research that brought many missing details of this mystery to light.