cuz we have this super interesting scenario where damian's keeping an eye on batdad while (half-heartedly) tryina stay off his radar (despite declaring to everyone and their mother that he is SON OF THE BAT)
and where, thanks to incorrigible gossips (TED), bruce is actually aware that kiddo's around but has been giving him his space (tho damian doesn't KNOW he knows)
and i was thinking like "ok, so for this plane ride, what's gonna be the pretext to that"
and i'm thinking that it's gonna be a pretty spur of the moment thing
like he realizes batdad is taking a plane (which at this point means OUT OF COUNTRY bc otherwise transporters)
and just like, infiltrates and tags himself along
no idea of where they going
but just to make sure he's there if batman runs aground of trouble
can i popcorn at these shenanigans
IT SHOULD BE PLENTY OF ENTERTAINMENT FOR ALL
when something or other causes robin to get knocked outta the vents or whatever. just drops right into mission talkies when they're mid-way across the atlantic
too late to turn that plane around

and then in usual batfashion they will probs both be too focused on The Mission to be like "should maybe have a father-son talk"
no time for emotions only infiltration and commies
that or have a totally nonchalant conversation mid-battle like The Princess Bride
damian playing it cool like "how long did u kno"
"the whole time."
"an unconvincing lie, father"
i'm also super looking forward to damian totally trying to turn the batmen against each other (as a way to eliminate terry and as a way to entertain himself)
heckles poor terry out of principle
Oh sweet summer child you can try
He will ruffle your hair, kick you in the butt, and call you a twip
so much offense!! i imagine he just like, whips his stare back to bruce like "DO SOMETHING ABOUT THIS IMPOSTER" but bruce like pretending he ain't even paying attention

silly Damian
gonna call you batboy ///:<