Finally actually starting A Snake in Horseland
So after he realizes that Silver Sulfur is actually Ozymandias Toad of course runs to the castle to warn everyone. Antivirus, Mira and Amy are already there because they (AV and Mira, not Amy (obviously)) detected Root's code signature randomly disappear. The Crew puts two and two together and teleports to the place where Toad saw him, and they see him and Garyboy going through a portal. Mira tries to rush them, but Gary shoots one of his fanged Super Suction Ears at her which forces her to duck and slide to dodge it, slowing her down enough for them to escape and close the portal behind them (the plunger gets cut off in the process but Garyboy isn't particularly fussed about it. He's a hydra and a code being, it'll grow back). There's a moment of stunned silence until...
"And nothing of value was lost!"
(...yeah Lil Coding isn't going to be particularly likeable for a good chunk of this)
After Vee smacks him upside the head so hard he ragdolls to the other end of the alley they're in, Antivirus reassures everyone that he can reopen the portal since it was closed so recently, though since he doesn't recognize the server on the other side he can't send them to exactly the same location within that universe that the villains went.
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Meanwhile, in the Grid's Fairly Oddparents universe, the Anchors and the twins (plus Cosmo, Wanda, Harmony and Mina, since they're package deals with their respective Anchors) are storming the Crocker Cave following a lead from Jimmy Neutron that the extended Syndicate are planning something with an upgraded version of Calamitus's (blatant copy of Jimmy's) interdimensional portal gate that can potentially bypass the Grid's firewalls. They arrive just in time to see Crocker, Plasmius, Vaati, Lokoko and Admin Gohma travel through the portal, with Plasmius noticing them and destroying the controls with an ectoblast so they can't use it to follow them (they're not stranded btw, Gohma has access to the portal command and can bypass the twins no problem. That's what the gate upgrades were based on in the first place).
Fortunately, they have magic on their side! Magic that is apparently also able to bypass firewalls because Fairly Oddparents Fairies Are O.P. (when they're not being hampered by Da Ruelz at least). So Timmy wishes for everybody in the room except the twins (because they have to stay behind since they're still supposed to be keeping the Grid's servers secure) to go to the same server the Syndicate did.
Unfortunately for both groups, Timmy's wish and the Crew going through Antiviruses portal just so happen to occur simultaneously, and the combination of Admin Code, Fairy Magic, and Equestrian Magic (because if you'll remember, the MLP:FiM universe changes anyone who enters it into an MLP-based species unless it can't figure out what to turn them into) causes both groups to get scattered to several different landing points across Equestria. So now they not only have to find Ozzy, Gary and the Syndicate team, but also each-other.
While dealing with being in unfamiliar bodies.
And dealing with Lil Coding's shitty attitude if they happen to be in the same group as him.
And being on a time crunch because the code entities can feel Root's signal repeatedly briefly come back online, each time weaker than the last and never long enough for them to pinpoint an exact location.
Fun! :)