I've done the Varys quest line and Targaryens had invaded Westeros. I wanted to join them but I couldn't find Daenerys. When I asked any of the vassals if they knew where she is at she wasn't listed among vassals so I cheated to find her. She was patrolling the sea between Essos and Westeros and only dialogue options were "Surrender or die!" or "Nothing. We will leave you in peace". pls help. 
. I reloaded the save and tried to capture him at least 5-6 times and he always gets killed, no matter if I kick him, beat him with bare fists or hit with blunt weapons. I tried with both cheats enabled and disabled but nothing works