A sibling rivalry reaches its boiling point on tonight's Arrow finale

Here’s what’s happening in the world of television for Monday, May 13. All times are Eastern.

Top pick

Arrow (The CW, 9 p.m., seventh season finale): The latter half of Arrow’s seventh season has largely focused on Oliver’s attempt to establish a relationship with his estranged half-sister Emiko. But after she revealed herself to be running the Ninth Circle, threatened the life of a pregnant Felicity, and dropped a building on Team Arrow, it’s safe to say that Ollie is probably done making amends, so fans can expect a heated confrontation between the two Queens in Arrow’s (penultimate) season finale. Tonight also marks Emily Bett Rickard’s final episode as a series regular, in what should be an emotional goodbye. Allison Shoemaker will be on hand to cover all the proceedings.

Regular coverage

DC’s Legends Of Tomorrow (The CW, 8 p.m.)

Wild card

Cherynobl (HBO, 9 p.m.): HBO’s bleak look at the 1986 Cherynobl nuclear disaster continues this week, exploring the fallout of the explosion, and the threats that could devastate the country.