Compared to many other holocaust movies this one was fairly mild.
Innocent families are seen being rounded up.
Men describe in detail what they witnessed during exterminations.
Families are seen being rounded up on to trucks and then later boarding trains heading to camps.
They mention on one occasion that the families were on a train for 4 days and that a number of people including babies and children died on the way.
There is also one scene where we see bodies being thrown into a huge trench that is engulfed with fire. A comment is made that the crematoriums cannot keep up with the number of bodies.