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Mei soon realizes this will be easier said than done-the satellite dish is broken, the snowcat is full of snow, the standby helicopter's main rotor has a snapped blade, and although she contemplates journeying into the Antarctic on foot she backs away. She states that she can't do it alone and she wishes her friends were still there, before Snowball brings her a cup of tea. She thanks the robot as there is a small power fluctuation, and she decides to find out a way of extending the life of the station's power supply batteries. As she minimizes the cryopod status window, she finds the message. The signal is still weak but it is broadcasting on the Overwatch Emergency Frequency. She thinks this might be a rescue message but she has to climb and reinforce the radio tower to know for certain.
Coming up with a plan, she uses various parts found around the Ecopoint to construct an improvised aerial and a prototype Endothermic Blaster over a period of around two days. Just as she successfully completes an endothermic reaction test but before she has finished the
system, the power dies completely; she realizes to her growing horror that in her excitement over the message, she completely forgot about saving power. There are no more batteries left either. Without power the station will eventually become an icy tomb, and neither can she finish the blaster: either way means death. As Mei tries to think of a way to restore power-just enough for her work station for a bit more time-Snowball recognizes there is one source of power left: himself. Not knowing, or even caring about, whether he will be able to recharge ever again, he plugs into the room's charging port and completely drains his own batteries. Mei notices the power restoring, but her renewed hope quickly turns to shock when she sees why this is happening just as Snowball shuts down. Initially distraught by this, Mei realizes the importance of why Snowball had made his choice, and after emotionally thanking Snowball Mei finishes the prototype, now truly on her own.
Mei climbs the tower using her blaster to create ice to climb and reinforces a missing section beside a hazardous materials tank, partially covering it. Nearing the top, a loose girder breaks off under her weight: she leaps to safety, but the section strikes the supporting ice below and weakens the tank, causing it to explode and sending the tower toppling over. Dangling by one hand, Mei desperately fires the blaster and is amazed at the resulting large pillars of ice supporting and securing the tower to the ice wall, and finishes climbing as it turns dark.