Female Intruder
There seems to be a female intruder among us. We believe she's connected with Sera.
We also believe that she was the one who removed the egg injected into Sera before it hatched. She may have had him retrieve the "sample" before the American agent's arrival.
It's obvious that her objective is the "sample". We must get to her before she is able to reestablish contact with Sera.
There's also reason to believe that she's working for somebody. We need her alive for interrogation.
The female should be able to answer all our questions. After we have captured her, Sera will no longer be of any concern.
As long as we retrieve the "sample", you may dispose of him as you see fit.