Downton Abbey's Dan Stevens and Michelle Dockery
The action has jumped two years to 1916. World War I is raging, and Downton's most eligible bachelorette Mary has set her sights on a publishing magnate (Iain Glen) despite being in love with Matthew, the estate's heir presumptive. ''Matthew doesn't want her,'' explains Downton creator Julian Fellowes. ''She's not going to wait around forever.''