[Solved] What the hell can a Dad do?

I have posted else where in regards to my particular issue at the moment in which my ex wife has taken my children and i have no idea where they are. I'm going to try and give some background to the situation.

My ex wife left the family home late last year and left both children with me, one of them is autistic and isnt biologically mine but i have raised him and in every way possible but by blood, he is my son. Although not legally. The other is mine biologically.

So, she left and the boys and i settled into a new routine (Lord knows it was rough, still is rough), she left me for somebody else and it ripped me apart.

Weve had the typical arguments and rows that follow your wife leaving you and its never got that far that either of us couldnt walk away and give it time to calm down.

A few weeks back, she had overnight access (i've always pushed for her to have them as often as possible). An argument ensure over their comfort blankets which were at my house, she wanted them and I didnt want to see her, so we had a row which eventually led to her refusing to allow the boys to call me and say goodnight (like they always do), an email followed telling me to come and say goodnight face to face and bring the blankets. So i did.

When i got there, she refused to let me see my youngest (turns out he was already in bed asleep) I got the right hump and attempted to get past her to give him a kiss goodnight and she called the police.

I got arrested the following morning for common assault and subsequently, other false allegations followed (Do i need to give more detail?)

I was released on bail that night with a condition that i wasnt to directly or indirectly contact her, which i havent and wont.

A few days later, i got a call from her mother explaining that she and the boys have been put into a safe house, the council have been informed and all of the benefits i received for the boys was going to be transferred to her name.

I followed up with the boys school who confirmed that she had removed them but they didnt have a reason as to why and they were going to report to social services.

Ive chased social services myself, by phone and letter and i have kept up contact with the school who are going to support me however they can.

We are now in a situation in which im going to take her to court. The boys need to be at home, especially the older one and they need to be in school.

There are so many other details, im aware this is an open forum so i am trying to be careful of what i say.

What i can say is this:

Mum left them with me (I have evidence from her stating several times it was because she wasnt in a position to have them and they were always safe with me)
Mum has (since leaving) admitted to the doctor she has an addiction to painkillers.
Mums new boyfriend has a history (on record) of domestic violence, substance abuse and alcoholism.
Mum has been put on anti depressants and lord knows what else.
Mums family have history of hereditary mental health issues.

Both boys were shy and reclusive and non verbal before she left, they are now outgoing, confident and completely verbal.

I'm not sure what to add.

I dont know what to do, but here i am, fighting.