As the delicate dance between Masaomi, Mikado and Anri continues, by the end of the previous episode Anri found herself in trouble once again (something which seems to have become a habit of late) as she attracts the attention of a group of Yellow Scarves members.
As information about what is going on reaching the Dollars, so Mikado changes his tune from one of regretting that the Dollars had ever been formed into using the powers that this group brings to save Anri from danger (oblivious as he is to the fact that Anri is probably perfectly capable of saving herself) - Thus begins a fantastic madcap chase between Anri and said group of Yellow Scarves members that involves a number of people and a rabbit costume.
This stop-start chase soon takes another turn, as Kida steps into the fray as mobiles are buzzing from all angles, confronting Anri in a rather accusatory manner about why she was spying on him, accusing her of being in cahoots with Mikado when of course this wasn't the case at all - Thus another piece in Izaya's plan falls into place as Anri gives Masaomi the slap he deserves, before finally being picked up by Selty and taken into the safety of her and Shinra's abode. Such safety is, of course, only temporary, with the tension between Yellow Scarves and Dollars accelerating rapidly, with both Masaomi and Mikado effectively abandoning their respective factions, but far, far too late to actually do anything about the escalating situation.
Although time seems to be running out to resolve everything satisfactorily within this series, this was a simply wonderful episode - I think I could watch the antics of Dollars members as they respond to Mikado's requests all day long in their own right quite frankly, and the feeling of intensifying pressure on the three main characters is carried off almost perfectly with a subtle blend of characterisation and story-telling. Put simply, this was Durarara!! at its best and most enjoyable - A stark reminder of the fact that a big part of me really doesn't want this series to end.