By Samantha Highfill
Updated June 15, 2015 at 12:00 PM EDT

Sometimes, our arch rivals are really our long lost relatives.

That’s the big takeaway from the final episode of Notary Publix, the web series from Kate McKinnon and sister Emily Lynne. For six episodes, the web series has followed the lives of two notaries as they’ve battled their rival, played by Saturday Night Live‘s Aidy Bryant.

And EW has an exclusive look at the series’ finale, in which the women’s mother has a life-changing secret—and a much-too-long story to prove it.