Marvel's 'Agents of S.H.I.E.L.D.' season 2 created something of an unexpected mystery in its inaugural two episodes, leaving viewers uncertain what had become of the actual Jemma Simmons (Elizabeth Henstridge), rather than a figment of someone's imagination. Next Tuesday's "Making Friends and Influencing People" will definitively solve that mystery (with a Hydra tweest!), and if the latest clip from the hour is any indication, this will be one to watch.

Per TVGuide, the latest 'Agents of S.H.I.E.L.D.' clip might prove among the most Whedon-y yet, as "Making Friends and Influencing People" picks up with the bubbly Simmons' morning routine, going about her chipper new life on the way to work...for Hydra! Granted the promos pretty much spoiled that twist, the clip seems to offer a pretty reasonable implication that all is not entirely as it seems.

Here's how Marvel describes Tuesday's "Making Friends and Influencing People," which will also feature Dylan Minnette's returning Donnie Gill / Blizzard:

Coulson and his team race against HYDRA to get to Donnie Gill–a dangerous gifted with the ability to freeze objects–while Simmons is caught in the crossfire on Tuesday, October 7.

Guest starring are Henry Simmons as Alphonso “Mack” Mackenzie, Reed Diamond as Daniel Whitehall, Dylan Minnette as Donnie Gill, Simon Kassiandes as Sunil Bakshi, Adam Kulbersh, as Kenneth Turgeon, Maya Stojan as Agent 33, David Diaan as Elias, Jarrod Crawford as Lead Hydra Agent, Nicholas Roth as Second Hydra Agent, Mo Darwiche as Ship’s Captain, and Jesse D Goins as Theo.

You can catch the latest 'Agents of S.H.I.E.L.D.' sneak peek above, but what say you? Could the chipper Simmons really have turned, or is she playing double agent? Catch up on season 1 below, and give us your 'Agents of S.H.I.E.L.D.' season 2 predictions in the comments!