The heartbreaking death of their son brings Alex and Robin to a crossroads. They don't know how to be happy again. Thoughts of revenge are the holding them together by a thread.
Regina and Mykolas are hiding things, horrible things, worse than drugging Alex or aiding Yosiah. With some help from Chelsea and their friends, they discover things that can bring the Pavasaris family to their knees.
Then, like a miracle, hope springs alive that perhaps Noah isn't dead. It's a slim chance, but the couple have to take it, as their lives will never be complete without their baby boy.
Traveling to South America with a group who assist people in getting free of cults, they hunt down the town Yosiah is building with the money Regina paid in blackmail. Watching him and the others every day, looking for any sign that Noah is still alive, Robin's hope starts to wane but Alex is there, trying to keep it alive for him.
The conclusion of Birds of a Feather brings back all the beloved and hated characters of the series for final showdowns, reckonings, and most of all, the HEA for the two men that have fought through the worst that life could throw them to be together.