After a Navy reservist is killed while protecting a city councilman, Sam is sent undercover in a private security firm with links to several criminal organizations. Also, Callen and Anna (Bar Paly) discuss the next steps in their relationship.
Dre's sister is in town for Mother's Day. Although everybody else knows she is a lesbian, Dre's mum Ruby has no idea.
Dre and Bow are unsure about how respond to the kids when they ask delicate questions about a controversial court case that involves alleged police brutality.
Dre has a holiday idea dubbed `Daddy's Day' by himself and his colleagues. Junior decides to try and help Bow around the house.
Dre accepts an invitation to attend church with a neighbour. When the family has a great time, Dre and Bow decide they need to say `yes' to things more.
