Detective Comics 1000000
Where to begin ,well you have to read Nightwing 1,000,000 first , where Batman of the future meets Nightwing for the first time this issue take place immediately after that and from the start Alfred don't seem to like him ( maybe because of Hourman Virus) and Robin more in awe of him and Nightwing seem to be not infected maybe out of respect because he's a BATMAN Nightwing brought him to the Batcave but he came with a mission .....to stop the Hourman Virus from destroying the 20th Century and there only few places in this time period that have advanced technology and the Batcave is one these places .
But there a problem even though the Batcave is High-Tech,by Future Batman's standards it's barely up to his. An he displays some very advance technology like creating independ Avatar working on Hourman Virus solution with Alfred while the REAL one goes with Nightwing and Robin to take on Firefly and his army of crazed citizens of Gotham. While Nightwing and Robin deal with the crazed citizens the Future Batman deal with Firefly which he do with ease but his Avatar comes to a shocking conclusion, to save the Present and the Future from Solaris's Hourman Virus the must create Solaris in Present