(CNN) Terry Ingraham went out in the bitter Nebraska cold Saturday to try to catch some shots of eagles, but his camera malfunctioned.

Sitting in his truck, trying to fix it, Ingraham instead caught sight of a dangerous wreck: a 2004 Crown Victoria with three teens in it crossed some railroad tracks, then lost control.

The car careened off the roadway, hit a fire hydrant and landed upside-down in a nearby pond.

"(They were) probably going a little bit too fast for conditions," Sarpy County Sheriff's Lt. Mike Erhart told CNN.

Ingraham saw the car stop, fall through the ice and begin to fill with water.

Read More