The latest episode of Titans season 2, episode 4.
There's a sense in which the latest episode of Titans, "Conner," was entirely about writing a way out of a death. It introduced viewers to DC Universe's version of Mercy Graves to track him down, and he was shot with a Kryptonite bullet.
Of course, no viewers are really expected to believe that Superboy is dead. The character was first teased in the post-credits scene of the Titans season 1 finale, meaning he was set up to be important. The entirety of Titans season 2, episode 6 is dedicated to establishing Conner as a character, so audiences can get a sense of who he is and how he operates. In narrative , it would make absolutely no sense to kill off Superboy at this point.
Which begs the question: Why did DC decide to end this episode with Conner bleeding out from gunshot wounds? The simple answer is that the injury means a critically-wounded Conner has to be taken into Titans Tower for medical care, and no doubt the Titans will quickly figure out what's ailing him; Dick Grayson will surely recognize Kryptonite, and once the bullets are out, Conner will begin to heal at an accelerated rate. For all that's the case, though, he will still need time to recuperate - leading to the Superman clone sticking around Titans Tower for a little while. The gunshots are essentially just another plot device.
It will be fascinating to see where Titans season 2 takes its Superboy subplot. Deathstroke will certainly find the team a lot tougher to handle if Superboy sticks around, even if Conner doesn't seem to be equal to Superman; notice that he wasn't able to leap a tall building in a single bound. Meanwhile, CUS is sure to want to retrieve Superboy's body, so they can be expected to launch attacks on Titan Tower. No doubt that will escalate when they realize he's still alive. Titans is unlikely to use Lex Luthor himself as a villain; but Mercy Graves is sure to return.