Those of us who aren’t lucky enough to be at SDCC this year have spent the weekend glued to our phones and computers, endlessly searching for the latest thing we’ve missed (and if you’re like me, are already getting messages that your data plan is approaching its threshold two weeks into your billing cycle). The awesome casts of Agents of S.H.I.E.L.D. and Agent Carter are straining my data plan even more with a Civil Wars-esque Dubsmash battle that’s been going on since Friday, and it is beautiful:

You’re on @ChloeBennet4 @clarkgregg pic.twitter.com/Dm41ZFwzSu — Hayley Atwell (@HayleyAtwell) July 11, 2015

Thank you @taylorswift13 and screaming goat @ChloeBennet4 @clarkgregg pic.twitter.com/fLizLJchKq — Hayley Atwell (@HayleyAtwell) July 11, 2015

The killer blow. Thank you @ChloeBennet4 BOOM @clarkgregghttps://t.co/SilK383hFfpic.twitter.com/SyQ60i6nd5 — Hayley Atwell (@HayleyAtwell) July 11, 2015

For those who don’t get why that particular choice was genius, check out the singer in this video. Look familiar?

Yeah, S.H.I.E.L.D.‘s Chloe Bennet has a pop career in China as Chloe Wang. Direct hit, Hayley and James. Bonus point for the lanyard headbands.

The Agents of S.H.I.E.L.D. couldn’t take that taunt lying down, and came back with what is arguably the greatest thing to come out of SDCC:

Consider the mic DROPPED. @realhayleyatwell #dubsmashwar2015 @clarkgregg A video posted by Chloe Bennet (@chloebennet4) on Jul 11, 2015 at 9:10pm PDT

Of course, it’s only fun when you get a reaction video:

A hit, a palpable hit, and Hayley wasn’t afraid to show it:

@ChloeBennet4 @clarkgregg pic.twitter.com/6w8EbuXJxJ — Hayley Atwell (@HayleyAtwell) July 12, 2015

But her despair soon changed to determination:

And the very satisfying result… Posted by Clark Gregg on Sunday, July 12, 2015

It took ten of you to try and bring down one agent. But Peggy Carter NEVER gives up @clarkgregg@ChloeBennet4 — Hayley Atwell (@HayleyAtwell) July 12, 2015

In a Coulson-worthy line, Clark Gregg accepted her challenge.

Something tells me this War isn’t over, folks. We all know nothing stops Peggy Carter. UPDATE (7/13/15): The War Continues…

The war continues. Bad Blood video as promised for our #NerdHQ panel. @realhayleyatwell @clarkgregg A video posted by Chloe Bennet (@chloebennet4) on Jul 12, 2015 at 12:37pm PDT

Choose your sides carefully, fans. It’s Agent against Agent and the Dubsmash Wars could change the course of human history…at least until Cap and Iron Man square off in Civil Wars.