Peter and Toomes battle it out on the cargo plane moving the Avenger's alien technology.   This "click pitch" is a mash up of months of work and multiple versions of this sequence.  

Spider-Man breaks up a weapons sale. 

Peter starts off going to a party and ends up meeting the Vulture for the first time. 

The is a sequence where most of the ideas didn't make it into the final film, but a few were moved to other, bigger sequences.