The central story centers on the Hawkins family, who purchase a Synth (synthetic robot) to help out around the house. Unbeknownst to them, the Synth they bring home is actually one of a special family of sentient Synths split up and on the run. Up until now, Synths have been a point of growing concern for society as they find their existence has drudged up feelings of anger and resentment ... while others see them as the next big technological breakthrough to make life easier for humans. The Hawkins family discovers that their Synth brings up numerous insecurities to light, as well as uncovering secrets buried within, while the government becomes aware of the sentient Synths after one of them kills a human. So one family is being ripped apart as another struggles to reunite.

Much hinges on the central human family. It might be hard to embrace Joe (Tom Goodman-Hill) or his wife Laura (Katharine Parkinson) and their insecurities but they do genuinely care for one another in the face of adversity. If you can't identify with either one, you might at least take a shine to one of their likable children: Matilda (Lucy Carless), Toby (Theo Stevenson) and Sophie (Pixie Davies).

As for the Synth family, it's made up of Leo Elster (Colin Morgan), Mia (Gemma Chan), Niska (Emily Barrington), Max (Ivanno Jeremiah) and Fred (Sope Dirisu). Just because they're man-made doesn't absolve them of dysfunction either as they begin to look for a greater purpose than just survival. In Humans, these two families become intertwined and are stronger because of it.

Family dramas have always been a strong foundation for many critical hits, whether we're talking about Breaking Bad, The Americans, Game of Thrones or Vikings. In genre, that family unit can be a conglomerate like Buffy the Vampire Slayer, Firefly or Star Trek, but that family unit is maintained as the lynchpin of their respected series. They provide conflict, redemptive moments and humor, and in Humans it's no different.