Laravel 5.8 pluck a relationship and use a local scope for that relationship

This seems pretty straightforward, but haven't had any luck. I have one to many Task to Block relationship. The relationships: Task->blocks:

public function blocks()
{
    return $this->hasMany(Block::class, 'task_uuid', 'task_uuid');
}

Blocks->task:

public function task()
{
    return $this->belongsTo(Task::class, 'task_uuid', 'task_uuid');
}

With that I can get all of a task's blocks like so: $task->blocks;. I'm trying to pluck all plucks from a collection of tasks: $tasks->pluck('blocks') and use a local scope that is on the Block model:

public function scopeUnresolved($query)
{
    return $query->where('resolved_at', null);
}

Some of my attempts (even the super dumb ones): $tasks->pluck('blocks')->unresolved()->get(); $tasks->pluck('blocks')->flatten()->unresolved()->get(); $tasks->pluck('blocks')->filter()->all()->unresolved()->get(); and a few others as well. Any insights on this? Thanks!

via Chebli Mohamed