The Family Law unfolds in the dysfunctional world of one Chinese-Australian family - as seen through the eyes of 14 year-old Benjamin Law. As Benjamin dreams of soap opera stardom, his parents contemplate separation. Over the course of one long, hot Queensland summer, the self-absorbed clarinet-playing teenager increasingly finds himself embroiled in other people's dramas.
Benjamin takes the initiative and forces the family into group therapy, resulting in a weekend trip to the zoo with Danny that gets out of control.
Benjamin seeks revenge on Andrew by giving Jenny the wrong idea about what to do for his 18th birthday party but no one foresees the impact that an innocent novelty erotic cake will have on the family forever.
Benjamin tries to cheer his mother by inviting her best – and possibly only – friend from Malaysia, Aunty Rose. But when Rose reveals her true colours Benjamin has to summon his siblings to save Jenny.
Everyone's favourite almost-functional Asian Australian family, the Laws, are back for a second season. After a summer to remember, Jenny Law and Danny Law have amicably parted ways, and a wiser, more mature Benjamin now understands that sometimes, parents just work better apart. After Jenny sees how well Danny is doing post-divorce, she over-invests in Benjamin’s campaign to become middle school captain but overshoots the mark, triggering a rupture in their relationship and unearthing uncomfortable truths about her place in the world.
As Jenny delves into the world of self-help, Benjamin auditions for the lead in the school production of Medea. Jenny, not being taken seriously by anyone, comes to blows with Danny over the realities of co-parenting.
After Benjamin discovers Danny in the arms of a new woman, he goes out of his way to help an oblivious Jenny find a new man, which compromises his own ability to perform at rehearsals for the school play.
After Candy and Wayne ask Benjamin to be their 'man of honour', he tasks himself with the job of delivering a perfect wedding. An unexpected gift from Wayne's parents, a property in Mt Isa, sets off a showdown between Candy and Jenny that could jeopardise everything. Wedding included.
After the family car breaks down, Jenny is forced to confront her lack of financial independence, and Benjamin and Melissa come to blows about his commitment to the school play.
After Danny is hospitalised - buckling under the overwhelming pressures of running a business by himself, providing for his family and starting a new relationship; Jenny and Benjamin make discoveries that ensure the family Law will never be the same again.