Will Mary Finally Learn To Trust Lord Darnley on Tonight's 'Reign'?

Mary (Adelaide Kane) looks a little impressed by Lord Darnley’s (Will Kemp) moves in the sneak peek trailer for Reign tonight.

In “Playing With Fire”, when Lord Darnley surprises Mary with a visit in Scotland, Mary sees a glimmer of a union that could be more than just political.

Meanwhile, Queen Elizabeth (Rachel Skarsten) fights to gain allies in her favor and Queen Catherine (Megan Follows) must work to get Claude (Rose Williams) back on track by finding her a new husband.

Tune in TONIGHT @ 9PM ET/PT on The CW.