Need to get the idea down before it runs away

(Damn you, plot bunnies!)

It wasn't long before they knew. It was cold. Frost lined the inside of the abandoned building. The warehouse which once held many encoded plans. The one place that could have been used to hide people, now a place which held the small group hostage. They had become prisoners in their own operation facility. Everything had been shut down. The computers, the switchboards, the lights, the heat, and every other electrical appliance that could reveal their location had been disconnected. One of them wondered if this could be their end. Another kept looking for a way out. The smaller one sat silently in the lap of one who's arm were wrapped around. There was a figure that merely stood there, a motionless husk, unknowing the danger they were in.

These five sat in this base of un-operation as prisoners. They were waiting. They saw everything around them with their eyes that pierced through darkness, but they did not see what was to become of them. The little one rested her head on her father's chest as he sat and thought of what to say. A woman was sitting beside them, holding her head up courageously. The other man paced around the room, wanting a cigarette or a grenade to escape with. Yet, none were able to hold out their fears any longer. The figure clad in metal turned to face the doorway which locked them inside.

"Echoes approaching ... ... ... Life-forms detected." It stated, a red light appearing on it's white metal face. The girl looked up. Her eyes showed no fear, but only confusion. She pulled at her father's shirt.
"Father, Gary says that they are coming. But we cannot hear anything. I cannot hear them... Are they?" She questioned. She could feel tears beginning to burn her eye's, but she wiped them away before any could be seen. Her father leaned in towards her, his head near her ear to only give the whisper, "Yes, dear."

But before anyone else could make another move, the door had swung open. It was a human; A pale human holding a safety pistol. Another human stood behind him, carrying a grenade rifle. The group just glared, taking the Dark Human tribe tradition with them. They would show no fear to their enemies. The human came in, pistol pointed towards them. There was a flare of a match, then a torch lit to reveal four faces and a white reflection of metal. Eyes were glowing with fierce intensity of intimidation. All but one, who's face was buried in her father's chest. The human with the pistol pointed it at the girl.

"She will be first. Does she speak English?" The human said at the man holding her. He stood up, carrying the girl.
"She does not. She will not be interrogated by you filthy betrayers," The man spoke in a not so fluent humanized tongue, "She has no part in these matters. I will go in her stead-"
"She has seen enough. You will translate for her."
"She is a mere child!" The dark human barked. He handed the girl to the woman, now seeming as though fear was slowly creeping into her. The girl held onto her father's hand, but he pulled her off. "You think you will gain anything? Listening to the babble of nonsense from a child? As I have said, I will go in her stead." The human scowled at this dark human. How dare this dark human act in such a way that could get him killed? There was a snap as though a whip had been struck. The dark human held his face, feeling blood seeping from his cheek.

"Silence, you insolent scum!" The human with the pistol growled, pointing it towards the girl, "Now quietly hand her over. Otherwise you will be dealing with the misfortune of-"
"She will not go!" The dark human jumped to his feet, hand reached out toward the human. The dark human clenched his fist, and the human's body looked as though it were going to implode.

(Dammit... can't think of anything else. At least the idea is down.)