Getting home

"We've arrived."
Tegan looked at the scanner. It showed a white wasteland.
"This is Heathrow airport? They sure forgot to clean the snow!"
The Doctor hung his head.
"The old girl is a bit temperamental. But we'll get you home."
"You said that before," Tegan answered, her voice raising. "Many times!"
"You're being unfair," Nissa joined in.
"Of course," Tegan shouted. "You're on his side!"
"Look," Nissa tried yet again. "We'll get there - eventually. Just try to enjoy the trip."
"Yeah, I'll be more optimistic! I hope we die before I see Heathrow in yet another time," Tegan stormed out.