WARNING: The following contains spoilers for Challenge of the Super Sons #6 by Peter J. Tomasi, Max Raynor, Luis Guerrero, and Rob Leigh, on sale now.
In Challenge of the Super Sons, Jon Kent is starting to wonder if the trust issues the Wayne family has really could turn them into villains someday. Superboy's worried about Damian dipping into his dad's arsenal, made even worse by Robin admitting that Batman still has weapons to take his Justice League teammates down.
Now, while Bruce doesn't have one for Jon, Damian kind of hints he does, but deflects the rest of the conversation. And in Challenge of the Super Sons #6, it doesn't get any better as Damian reveals another secret tool he pocketed off his dad, a powerful time-tool that once more has Jon questioning what the heck Bruce and his son are up to in their spare time.
In this issue, Damian and Jon save Hawkgirl from a poisonous gas Vandal Savage left for her in a sarcophagus. Using the Doom Scroll, they're jumping around the timeline saving Justice Leaguers, but they can't let them know why. Hawkgirl doesn't take too lightly to being knocked out, though, so she chases them down. They eventually escape and end up at a rendezvous point to meet their temporal guide, Rora, and it's here Damian reveals the item. He asks Jon to use hyper-vision to figure out where Rora is as she's late, but Superboy makes it clear there's no such thing. He has heat vision and telescopic vision, but as he tries to argue about something that doesn't exist Robin pulls out chrono-vision. Damian admits Bruce invented it for one of the crises over the last couple of years, which given DC's ever-fluid timeline could be anything. Robin says this will alert them to localized time displacements so hopefully, it can ping Rora.
It's a very powerful tool seeing as how often time, space, and reality bend in the DCU. It could detect incursions from the likes of Rip Hunter and Booster Gold, and even the Time Lord, Epoch, allowing Bruce to know if the fabric of his world is in danger. It's also pretty nifty for if, oh, Barry Allen wants to mess with the timestream again and produce another "Flashpoint". Interestingly, one has to wonder where Batman got the tech to build such a device, but that's a question for another day. Damian doesn't seem to know all that background info in any case -- he's just concerned with getting elite devices without Bruce knowing, which is clearly a habit.
Sadly, it's not working as well as they wanted this time around because Vandal, who apparently made his way through the timestream again, sneaks up on them, holding Rora hostage. It seems all the messing with time hasn't paid off as she'd hoped for and now the youthful World's Finest are going to need new toys if they're to save her.