bergdahl says as a private first class he would not have been taken seriously but platoon mads believe he put fellow troops in danger with six of them killed in various missions afterward. >> i don't know if there is anyone that can prove soldiers died on a directed mission to find bergdahl, however, every mission especially in the following two or more months were directed missions. everything after that were still missions that were in search of bergdahl. >> reporter: bergdahl says after he left the post he looked for someone planting ieds he could track but instead he got lost and in the morning he was spotted by a group of insurgents. >> they pulled up and that was it. >> reporter: they said you fought like crazy. [ laughter ] >> no, i didn't. i'm not stupid enough to try and fight off -- all i had was a knife. i'm not stupid enough to try to knife off a bunch of guys with ak-47s.