You are on Blue Side
You start Red > Wolves > Blue and look to gank
Mid is in the middle of the lane. Both laners have all of their summoners as far as you know.
Your Top laner is pushing and due to some good early trades your laner is healthier than the enemy Top laner.
The enemy Bot lane came to lane about the same time as your Bot lane suggesting that they too leashed for their jungler.
I've found this to be a pretty common scenario. So many games I've gone up to ward the tribush to protect my laner from a 3:00ish minute gank by the enemy jungler and I've actually dropped the ward right on top of the enemy jungler sitting in the Tribush.
Often times this results in nothing except a little damage exchanged, but does nothing to change the overall balance of power on the map.
So, how about you walk past Gromp after doing Blue (assuming you are healthy enough and have enough mana) and get into the lane brush and setup for a countergank?
Boom, double kill.
What happens next? …