Arrow - 'Restoration'

"Deal with it!" (is what he doesn't use as a catchphrase.)

With Laurel and Thea on their 'spa trip', Original Team Arrow (so dubbed by Felicity) are struggling to overcome the trust issues between Oliver and Diggle, which become life-threatening when each heads out alone.

Diggle is hunting Mina Fayad, the Hive agent who hired Floyd Lawton to kill his brother, but Fayad is in town bringing a metahuman hitman to kill the Arrow. While Diggle barely escapes from Fayad's security detail, Oliver is lured into a trap and nearly sliced and diced with playing cards that the meta pulls from his tattooed skin. Felicity forces the two boys to cooperate and Diggle explains the Hive connection to Oliver, leading them to go after Fayad together.

They say that cat Smoake's a bad mother...
Shut yo mouth!

Unfortunately, Darhk has killed Fayad in the process of demonstrating his telekinetic powers to the meta (dubbed Double Down by Cisco Ramone) and in punishment for almost getting caught. It also appears to be a political move, with Hive's upper echelons including rivals as well as disciples of Darhk. While they are finding her corpse, Double Down tracks his card to a Palmer Tech lab, where Felicity has asked Curtis Holt to analyse it, basically pulling an 'Oliver in Season 1 asking Felicity to look into something' act.

The assassin chases them to the Lair 2.0, but discovers that metahuman card-throwing skills are at best a score draw against a genius with a submachine-gun, and not really up to snuff against two black ops badasses with an axe to grind. Double Down goes to the metahuman wing at Iron Heights (I guess with a legal metahuman containment facility available, the Pipeline at STAR Labs is just being used for Earth-2 criminals and Lian Yu for people they really don't like?) and in the process, Oliver takes a playing card for Diggle to restore the trust.

"What was I drinking?"

Meanwhile, in Nanda Parbat, Laural asks Malcolm to bring back Sara. He refuses and Nyssa back him up: It's never been done with someone so long dead, and anything even close has always been a disaster. Laurel whines and asks how Nyssa can not want Sara back. Nyssa calls her on her motivation being grief and selfishness, not love of her sister. Laurel, being Laurel, absolutely does not get the message.

Thea asks her father for help in dealing with her problem. He explains that the blood lust comes from fragments of the souls of all those who have ever used the Pit, and will persist until she kills the one who wronged her (not a great solution, since the former Ra's al-Ghul is already dead,) but can be kept at bay by... occasionally killing someone. Being a supportive dad, he then sends a couple of mooks to try to kill her, so that she can off them in self-defence and gain a few weeks respite.

In a random change of heart, Malcolm decides to let them use the Pit to bring Sara back, despite Nyssa's continuing objection and Thea's doubts. Sara returns as a wold-eyed maniac, after which Nyssa destroys the Lazarus Pit so that its existence can't offer hope to counter that flash forward to the graveside from Episode 1. Someone's going yo die this season, and they're not coming back, okay.

An interesting note from this and last episode is that Damien Darhk's approach to staff competence fits a little awkwardly with the standard pattern of Arrow - villain of the week attacks, team hunts villain (or vice versa) for an inconclusive clash, final face-off. Darhk likes results first time out and has a bit of a minion-murder problem, so they're stretching a point each time someone makes it to the next stage.